Engine Problems Please Help!!!!
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From: south of Hotsprings ar
Engine Problems Please Help!!!!
I have a ford 1990 302 that has bad blowby. It has lost alot of power and seems to be giving up on me. I don't have a compression gauge, so i can't check my compresion. Is there any thing i can check other than that?? Again thanks for all your help!!!!
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From: south of Hotsprings ar
Thanks, Thats what i figured. I was hoping some one could tell me what might be wrong. The engine only has 60,000 Miles on it since it was rebuilt, and it was rebuilt good. Every thing was replace. It was bored .60 over and everything. It should have lasted longer i think. I do have a pretty bad rear main leak. Well thanks for everything
Hotshot
Joined: Jul 2002
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From: Bend,OR
pull codes, www.fordfuelinjection.com has instructions using a paperclip and some time. you may have a clogged cat converter, bad fuel pump, clogged fuel filter, timing off etc..
are you running larger then stock tires? how many miles on the tranny?
are you running larger then stock tires? how many miles on the tranny?
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From: south of Hotsprings ar
I am not running big tires. They are the original size. My tranny is about to take a crap. Refer to post:https://www.ford-trucks.com/forums/5...lp-please.html
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From: south of Hotsprings ar
Thats kind of what i thought. But i have so much blowby. I have a full stream of of air coming out of my dip stick. Plus the air is realy smokey. Any thoughts??
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You say that you have a full stream of air coming out of the dipstick. High air pressures coming from the engine insides is a sign of bad rings or a hole in a piston. You will need to do a compression check
Hotshot
Joined: May 2003
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From: south louisiana
Your transmission could have too much line preessure in the torque converter, that will force the crankshaft forward and wear out the thrust bearing and eventually wear the counterweights against the main saddles. I've seen one 90's 5.0 from an AOD transmissioned van do this. I caught it in the nick of time.
Hotshot
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From: south louisiana
As for diagnosing the transmission, that I can't tell you, but if you pulled the engine, you'd see the results, if that's what was happening. See a transmission shop? Unless someone else here knows more about this and can guide you through it.
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you could try this. Cylinder Contribution Test
if it's carb'ed it will be easier
if injected you'll need to disable the idle control
get a tachometer and set it up in the engine compartment
start and warm up the motor
get it to idle normal (wright donw the rpms)and start pulling plug wires at the cap one at a time
with one wire off take note of the rpm's (wright it down)
replace the wire and remove the next one, take note of the rpms
after you have done all 8 look at the readings, the one that has the less of an rpm drop will be the weakest cylinder.
give it a try works good........
if it's carb'ed it will be easier
if injected you'll need to disable the idle control
get a tachometer and set it up in the engine compartment
start and warm up the motor
get it to idle normal (wright donw the rpms)and start pulling plug wires at the cap one at a time
with one wire off take note of the rpm's (wright it down)
replace the wire and remove the next one, take note of the rpms
after you have done all 8 look at the readings, the one that has the less of an rpm drop will be the weakest cylinder.
give it a try works good........