Engine Problems
Junior User
Joined: Jan 2001
Posts: 50
Likes: 0
From: Montgomery USA
Engine Problems
Help!!!! I have got a 302 in a '71 F-100 and after I start the motor and go to put it in gear for the first time.... it dies. It does not matter wheather the engine is hot or cold, it still does it. I have a factory type carb on top of it and have tried just about everything that I know how to do.... Does anyone have any suggestions as to what could be the cause?? If so please let me know..... I just got done rebuilding the carb, so that can't be the problem..... it has to be something else....
thanks and look forward to hearing from you all....
Strawberry
'71 F-100 Custom
thanks and look forward to hearing from you all....
Strawberry
'71 F-100 Custom
Moderator
Joined: Jan 2001
Posts: 56,966
Likes: 2,728
From: Virginia
Engine Problems
If it didn't do it before the carb rebuild, well I hate to say it so I won't. Hold your left foot on the brake ( I am assuming it's an automatic) and with your right foot, pat the gas when you put it in gear. If you can keep it running by lightly patting the gas, I would say the carb is out of adjustment somewhere.
Junior User
Joined: Jan 2001
Posts: 50
Likes: 0
From: Montgomery USA
Engine Problems
It did this before I rebuilt the carb, and that is why I thought that was my problem..... I put the carb back on the motor and it still does it. I have the idle set at about a grand, so it idles kinda fast as it should only be around 800. I always keep my foot on the brake as this thing will take off if you don't. I was thinking the EGR valve or something to that effect was choking it, or maybe the valve on the transmission needs to be replaced.. ..... . . If you or anyone has any other ideas why this would be happening let me know....
Thanks,
Strawberry
'71 F-100 Custom
Thanks,
Strawberry
'71 F-100 Custom
Senior User
Joined: Aug 2001
Posts: 321
Likes: 2
From: Queen Creek, AZ
Engine Problems
So it is an automatic? I think your torque converter is shot and is locking up. That's why if your foot isn't on the brake it'll take off, and why if your foot is on the brake it'll die.
Just a thought. Might be worth looking at, especially if it has a lot of miles on it, and especially before you sink any more money into the engine.
Later
Just a thought. Might be worth looking at, especially if it has a lot of miles on it, and especially before you sink any more money into the engine.
Later
Junior User
Joined: Jan 2001
Posts: 50
Likes: 0
From: Montgomery USA
Engine Problems
This ole truck has about 56 thousand miles, but it sat alot of years.... about 8. I would like to think that it is not the torque converter as they can be a real pain in the butt to work with.... been there done that on other trucks... I was hoping there was an easier way.... after it warms up and has been running a while, it will not die after I shut it off and start it back up..... could that be a sign of the converter going out?
Talk to me......
Derrick Percival AKA Strawberry
'71 F-100 Custom
Talk to me......
Derrick Percival AKA Strawberry
'71 F-100 Custom
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Senior User
Joined: Aug 2001
Posts: 321
Likes: 2
From: Queen Creek, AZ
Engine Problems
Sorry, I didn't explain myself very well earlier. My thought about the converter was that if the oil is too thick, from a wrong oil grade or bad oil or something, it would cause the converter to lock up too soon, and the engine couldn't handle the load and stall out. But, as oil warms up, it thins and the converter wouldn't lock up as soon.
One question though. Does your choke have a vacuum pull off? If so, that's probably your culprit. If it's leaking, then your choke won't function properly. That's probably a good place to explore, is whether or not your choke is functioning properly. If it's not, then really no matter how fast you set your idle, the load of the transmission will kill your cold engine. And then, since an engine doesn't need choke to live once it's warm, it wouldn't matter any.
Just a thought. Hope that's a little bit clearer.
Later
One question though. Does your choke have a vacuum pull off? If so, that's probably your culprit. If it's leaking, then your choke won't function properly. That's probably a good place to explore, is whether or not your choke is functioning properly. If it's not, then really no matter how fast you set your idle, the load of the transmission will kill your cold engine. And then, since an engine doesn't need choke to live once it's warm, it wouldn't matter any.
Just a thought. Hope that's a little bit clearer.
Later
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