Questions, oh questions...
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Post Fiend
Joined: Jul 2005
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From: Durant, OK (SOSU)
Questions, oh questions...
Ok few random vehicle related questions...mainly to longevity.
Does it hurt the vehicle to get on it occasionally (say a few times a day)?
Does runnin' the RPMs up high say a few times a day hurt anything in the long run?
If you get up to 4K or say and coast...should you press in the clutch or is it ok to let the engine slow with the vehicle?
What's a good time to wait before driving away after starting the vehicle to let it thoroughly warm up?
What were the available rear end ratios on a '00 Silverado and a '03 GMC Yukon? And a '92 GMC Sierra if you can pull that off...
Does it hurt an auto tranny to manually shift the gears? (i.e. when bored?)
Is it anymore stress on the engine doing 4K in first than 4K in third?
I'll think of more later...just trying to fill my knowledge base. Thanks guys.
RP
Zach
Does it hurt the vehicle to get on it occasionally (say a few times a day)?
Does runnin' the RPMs up high say a few times a day hurt anything in the long run?
If you get up to 4K or say and coast...should you press in the clutch or is it ok to let the engine slow with the vehicle?
What's a good time to wait before driving away after starting the vehicle to let it thoroughly warm up?
What were the available rear end ratios on a '00 Silverado and a '03 GMC Yukon? And a '92 GMC Sierra if you can pull that off...
Does it hurt an auto tranny to manually shift the gears? (i.e. when bored?)
Is it anymore stress on the engine doing 4K in first than 4K in third?
I'll think of more later...just trying to fill my knowledge base. Thanks guys.
RP
Zach
The Pacifier
Joined: Jan 2003
Posts: 8,245
Likes: 7
From: Cloverdale, BC
1. Probably okay.
2. Again, probably okay.
3. Never clutch in unless you are going to shift.
4. If you got heated O2 sensors, 5 seconds.
5. No idea.
6. If you're that bored, get a stick shift.
7. There'd be more stress on the trans than the engine.
2. Again, probably okay.
3. Never clutch in unless you are going to shift.
4. If you got heated O2 sensors, 5 seconds.
5. No idea.
6. If you're that bored, get a stick shift.
7. There'd be more stress on the trans than the engine.
Post Fiend
Joined: Feb 2004
Posts: 10,728
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From: Damascus-Boring, Ore
RangerPilot Ok few random vehicle related questions...mainly to longevity.
Does it hurt the vehicle to get on it occasionally (say a few times a day)?
Define "get on it." Isn't going to do your gas mieage any good, and ultimately will affect the durability of various components.
Does runnin' the RPMs up high say a few times a day hurt anything in the long run?
Depends on the engine, and what we're calling "up high." A small OHC motor- probably not. A big OHV V8- not helpful.
If you get up to 4K or say and coast...should you press in the clutch or is it ok to let the engine slow with the vehicle?
Never press on the clutch unless you're getting ready to shift.
What's a good time to wait before driving away after starting the vehicle to let it thoroughly warm up?
Start it up, wait for oil pressure to come up (15-30 seconds) and drive gently until things are fully warmed up.
What were the available rear end ratios on a '00 Silverado and a '03 GMC Yukon? And a '92 GMC Sierra if you can pull that off...
3.42, 3.73 and 4.10. Codes GU6, GT4, or GT5. Sierras the same truck- same ratios too.
Does it hurt an auto tranny to manually shift the gears? (i.e. when bored?)
Depends- generally, an Automatic, especially a modern one, does a better job without human intervention.
Is it anymore stress on the engine doing 4K in first than 4K in third?
Again, in most cases, 4K RPM will cause the most pain at the gas pump.
Does it hurt the vehicle to get on it occasionally (say a few times a day)?
Define "get on it." Isn't going to do your gas mieage any good, and ultimately will affect the durability of various components.
Does runnin' the RPMs up high say a few times a day hurt anything in the long run?
Depends on the engine, and what we're calling "up high." A small OHC motor- probably not. A big OHV V8- not helpful.
If you get up to 4K or say and coast...should you press in the clutch or is it ok to let the engine slow with the vehicle?
Never press on the clutch unless you're getting ready to shift.
What's a good time to wait before driving away after starting the vehicle to let it thoroughly warm up?
Start it up, wait for oil pressure to come up (15-30 seconds) and drive gently until things are fully warmed up.
What were the available rear end ratios on a '00 Silverado and a '03 GMC Yukon? And a '92 GMC Sierra if you can pull that off...
3.42, 3.73 and 4.10. Codes GU6, GT4, or GT5. Sierras the same truck- same ratios too.
Does it hurt an auto tranny to manually shift the gears? (i.e. when bored?)
Depends- generally, an Automatic, especially a modern one, does a better job without human intervention.
Is it anymore stress on the engine doing 4K in first than 4K in third?
Again, in most cases, 4K RPM will cause the most pain at the gas pump.
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Post Fiend
Joined: Jul 2005
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From: Durant, OK (SOSU)
Get on it = put it to the floor and let it run.
Up high = not redline, just revving it up. My example I guess would be my '94 Ranger XLT 4.0L 5 speed.
What does pushing in the clutch rather than just coasting do? Wear the clutch out?
I'm not too worried about gas mileage anyways lol. Not really high on my priority list...
Thanks for your help guys.
Up high = not redline, just revving it up. My example I guess would be my '94 Ranger XLT 4.0L 5 speed.
What does pushing in the clutch rather than just coasting do? Wear the clutch out?
I'm not too worried about gas mileage anyways lol. Not really high on my priority list...
Thanks for your help guys.
Posting Guru
Joined: Dec 2003
Posts: 1,651
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From: Maine
Originally Posted by RangerPilot
Does it hurt an auto tranny to manually shift the gears? (i.e. when bored?)
And I must say I'm baffled by the question about whether to clutch or not at high RPMs- if you want to coast then you would have to shift to neutral. Otherwise you wouldn't be coasting. If you want to keep the truck in gear, and use engine braking (or power to maintain speed), then you'd leave it in gear.
Postmaster
Joined: Jul 2003
Posts: 2,628
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From: Calgary, Canada
Originally Posted by RangerPilot
What does pushing in the clutch rather than just coasting do? Wear the clutch out?
Incidentally, the drivers ed book I read when I got my learners said that; when stopped at a light, to keep the car in 1st and keep the clutch depressed, this way you could react quickly if somebody was going to rear-end you.
The Pacifier
Joined: Jan 2003
Posts: 8,245
Likes: 7
From: Cloverdale, BC
Originally Posted by furball69
Puts extra wear on the throwout bearing.
Incidentally, the drivers ed book I read when I got my learners said that; when stopped at a light, to keep the car in 1st and keep the clutch depressed, this way you could react quickly if somebody was going to rear-end you.
Incidentally, the drivers ed book I read when I got my learners said that; when stopped at a light, to keep the car in 1st and keep the clutch depressed, this way you could react quickly if somebody was going to rear-end you.
Honestly, if you are asking about longevity, and most of these questions are about abuse, while keeping in mind you asked about putting a small block Chevy into your Ranger, I have to warrant a guess that these questions are about just that.
You probably won't hurt the engine. But abuse won't help the longevity cause.
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Post Fiend
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From: Durant, OK (SOSU)
Nope...it's about the stock 4.0L. Glad you remember my previous questions though! lol.
Yeah in Texas coasting in neutral is illegal. None of that. What I guess I should have asked was is it hard on the engine to let off the gas at say 4K RPM and slow down, clutch still fully out and the truck in gear, so the engine is running throttle closed at 4K RPM and slowing down. Just seems to me as if it's not too easy for the engine, receiving little fuel/air, to run at 4K.
I just would like this engine to last a while (until a suitable replacement [read:302] can be found). I'll put it to the floor occasionally, but I don't want to do anything that would seriously put massive strain on the engine (killing it by dropping the clutch, et cetera). Just trying to set a base so I can take care of all my present and future vehicles.
What happens if you shift an auto into reverse while driving? I know both of my friends cars have a lockout on them, you can't shift into reverse unless below a certain speed, do trucks have the same feature?
Yeah in Texas coasting in neutral is illegal. None of that. What I guess I should have asked was is it hard on the engine to let off the gas at say 4K RPM and slow down, clutch still fully out and the truck in gear, so the engine is running throttle closed at 4K RPM and slowing down. Just seems to me as if it's not too easy for the engine, receiving little fuel/air, to run at 4K.
I just would like this engine to last a while (until a suitable replacement [read:302] can be found). I'll put it to the floor occasionally, but I don't want to do anything that would seriously put massive strain on the engine (killing it by dropping the clutch, et cetera). Just trying to set a base so I can take care of all my present and future vehicles.
What happens if you shift an auto into reverse while driving? I know both of my friends cars have a lockout on them, you can't shift into reverse unless below a certain speed, do trucks have the same feature?
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Postmaster
Joined: Jul 2003
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From: Calgary, Canada
Originally Posted by RangerPilot
What happens if you shift an auto into reverse while driving? I know both of my friends cars have a lockout on them, you can't shift into reverse unless below a certain speed, do trucks have the same feature?
The Pacifier
Joined: Jan 2003
Posts: 8,245
Likes: 7
From: Cloverdale, BC
Okay, for you to be running at about 4000 rpm, throttle plate closed, that won't be a problem. That's basically what you're doing when you drive downhill, maybe not 4000, maybe in excess of 4000. All you're really doing is pulling a stronger vacuum.
It's a type of engine braking, if you will.
Diesel engines don't have throttle plates, that's why big rigs have jakes, medium duty trucks have exhaust brakes, and some pickups might even have exhaust brakes. Gas engines don't need any of it because of the throttle plates.
edit: just imagine how you slow your truck down without tapping the brakes. You gear down, right? When the slowing power is reduced, you downshift again, right? Same thing.
It's a type of engine braking, if you will.
Diesel engines don't have throttle plates, that's why big rigs have jakes, medium duty trucks have exhaust brakes, and some pickups might even have exhaust brakes. Gas engines don't need any of it because of the throttle plates.
edit: just imagine how you slow your truck down without tapping the brakes. You gear down, right? When the slowing power is reduced, you downshift again, right? Same thing.
Last edited by bigrigfixer; Apr 4, 2006 at 09:30 PM.
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Rangerpilot, you must be in a different boat than I am. In order for me to spend money on fun stuff (like your 302 idea) I have to break what I have so that I can justify it with my significant other. Just can't let her know I did it on purpose.
Gone but not forgotten.
Joined: Jul 2001
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Originally Posted by RangerPilot
Nope...it's about the stock 4.0L. Glad you remember my previous questions though! lol.
Yeah in Texas coasting in neutral is illegal. None of that. What I guess I should have asked was is it hard on the engine to let off the gas at say 4K RPM and slow down, clutch still fully out and the truck in gear, so the engine is running throttle closed at 4K RPM and slowing down. Just seems to me as if it's not too easy for the engine, receiving little fuel/air, to run at 4K.
I just would like this engine to last a while (until a suitable replacement [read:302] can be found). I'll put it to the floor occasionally, but I don't want to do anything that would seriously put massive strain on the engine (killing it by dropping the clutch, et cetera). Just trying to set a base so I can take care of all my present and future vehicles.
What happens if you shift an auto into reverse while driving? I know both of my friends cars have a lockout on them, you can't shift into reverse unless below a certain speed, do trucks have the same feature?
Yeah in Texas coasting in neutral is illegal. None of that. What I guess I should have asked was is it hard on the engine to let off the gas at say 4K RPM and slow down, clutch still fully out and the truck in gear, so the engine is running throttle closed at 4K RPM and slowing down. Just seems to me as if it's not too easy for the engine, receiving little fuel/air, to run at 4K.
I just would like this engine to last a while (until a suitable replacement [read:302] can be found). I'll put it to the floor occasionally, but I don't want to do anything that would seriously put massive strain on the engine (killing it by dropping the clutch, et cetera). Just trying to set a base so I can take care of all my present and future vehicles.
What happens if you shift an auto into reverse while driving? I know both of my friends cars have a lockout on them, you can't shift into reverse unless below a certain speed, do trucks have the same feature?
Dono
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Post Fiend
Joined: Jul 2005
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From: Durant, OK (SOSU)
WOW lol 16000 miles with the engine idling along lol.
Ok no damage gliding down from 4K RPM, good to know. The vacuum gauge should make it fun to watch as well! lol.
No significant other to ask. Just parents. So that solves that problem!
I'll make a mental note NOT to try the reverse lockout, just in case it doesn't have it. I did look it up in my mom's Silverado manual, it says there's a lockout to prevent it at high speeds, not going to try it though. My dad's...no idea. Mine is a stick, so you know how that goes.
Thank you guys all so much for your help. Any other random facts I should know?
RP
Zach
Ok no damage gliding down from 4K RPM, good to know. The vacuum gauge should make it fun to watch as well! lol.
No significant other to ask. Just parents. So that solves that problem!
I'll make a mental note NOT to try the reverse lockout, just in case it doesn't have it. I did look it up in my mom's Silverado manual, it says there's a lockout to prevent it at high speeds, not going to try it though. My dad's...no idea. Mine is a stick, so you know how that goes.
Thank you guys all so much for your help. Any other random facts I should know?
RP
Zach
Postmaster
Joined: Mar 2001
Posts: 4,968
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From: So Cal
OK my answers based upon drving for about 33 years and blowing up a tranny or two. Never could blow an engine. I have used up cluthes at 50K and trashed a couple trannies due to harsh or stupid driving. But a little enthusiam is not necessarily bad for an engine or tranny. In fact many engines need a bit of "blowing out the carbon". I usually sell my vehicles between 80K and 120K but have had one I did 180K with severe teenage abuse.
Driving lots of miles and getting to make repairs is the best school. Too bad it usually takes a long time to learn what not to do. An engine is pretty durable and a tranny is almost as good. But if you really abuse them, then you get to learn. My 74 Datsun and 67 Dodge taught me tons since I got to fix them or pay for repairs all the time. I did get 180K on the Datsun, but it was a lot of work.
Maintenance is the key to making the most of what your vehicle has in it even if you do abuse it a bit.
Good Luck,
Jim Henderson
Originally Posted by RangerPilot
Ok few random vehicle related questions...mainly to longevity.
Does it hurt the vehicle to get on it occasionally (say a few times a day)?
Probably does take a bit of life out of the engine and tranny but most decently designed vehicles are good for over 100K. I get on it every day probably at least twice. But this is usually from a rolling start so there is no sudden slamming of the drive train. I do this to get onto on ramps during my commute. I used to drive much more aggressively and the main problem I had was clutches and maybe reduced tranny life(slam shifting).
Does runnin' the RPMs up high say a few times a day hurt anything in the long run?
Probably not the best thing to do. I generally do not get up close to redline since the automatics usually shift well before then. DO NOT redline while cold.
If you get up to 4K or say and coast...should you press in the clutch or is it ok to let the engine slow with the vehicle?
I would leave it in gear until my speed made it necessary to shift or clutch. It is not a good idea to downshift to slow down. That is what brakes are for.
they are much cheaper and easier to replace than a clutch.
What's a good time to wait before driving away after starting the vehicle to let it thoroughly warm up?
Most fuel injected cars are ready to roll after just a few seconds. I would say by the time I roll out my driveway it is ready for normal driving. DO NOT stomp on it while the engine is cold, especially if it is freezing.
Does it hurt an auto tranny to manually shift the gears? (i.e. when bored?)
I got to pay for a rebuild because I liked to do that, the shop owner was a buddy of my boss and he chewed me out good. So let the tranny shift for itself, it is much smarter than you or I.
Is it anymore stress on the engine doing 4K in first than 4K in third?
Depends on what else you are doing. I would say less strain in first since the gearing is allowing the engine to multiply it's power, if you are driving relatively normal. But if you are constantly winging it as hard as you can, then I would say being in lower gears would be more harmful since shifting up will slam the next gear and engine.
I'll think of more later...just trying to fill my knowledge base. Thanks guys.
RP
Zach
Does it hurt the vehicle to get on it occasionally (say a few times a day)?
Probably does take a bit of life out of the engine and tranny but most decently designed vehicles are good for over 100K. I get on it every day probably at least twice. But this is usually from a rolling start so there is no sudden slamming of the drive train. I do this to get onto on ramps during my commute. I used to drive much more aggressively and the main problem I had was clutches and maybe reduced tranny life(slam shifting).
Does runnin' the RPMs up high say a few times a day hurt anything in the long run?
Probably not the best thing to do. I generally do not get up close to redline since the automatics usually shift well before then. DO NOT redline while cold.
If you get up to 4K or say and coast...should you press in the clutch or is it ok to let the engine slow with the vehicle?
I would leave it in gear until my speed made it necessary to shift or clutch. It is not a good idea to downshift to slow down. That is what brakes are for.
they are much cheaper and easier to replace than a clutch.
What's a good time to wait before driving away after starting the vehicle to let it thoroughly warm up?
Most fuel injected cars are ready to roll after just a few seconds. I would say by the time I roll out my driveway it is ready for normal driving. DO NOT stomp on it while the engine is cold, especially if it is freezing.
Does it hurt an auto tranny to manually shift the gears? (i.e. when bored?)
I got to pay for a rebuild because I liked to do that, the shop owner was a buddy of my boss and he chewed me out good. So let the tranny shift for itself, it is much smarter than you or I.
Is it anymore stress on the engine doing 4K in first than 4K in third?
Depends on what else you are doing. I would say less strain in first since the gearing is allowing the engine to multiply it's power, if you are driving relatively normal. But if you are constantly winging it as hard as you can, then I would say being in lower gears would be more harmful since shifting up will slam the next gear and engine.
I'll think of more later...just trying to fill my knowledge base. Thanks guys.
RP
Zach
Maintenance is the key to making the most of what your vehicle has in it even if you do abuse it a bit.
Good Luck,
Jim Henderson
Last edited by jim henderson; Apr 6, 2006 at 01:56 PM.
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