need advise, Please help
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New User
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From: Rice Lake, WI
need advise, Please help
Hi,
I have a 91 f150 with a 302, aod, reg cab, long box. I was getting on to the freeway about 20minutes form home, when my truck lost a lot of power and it didn't want to accelerate. Then a couple minutes later I noticed white smoke coming out from under the hood. All gauges said every thing was fine, but I pulled over and popped the hood and saw no leaks and no smoke; checked fluids and everything was good. no odd noises either. So i got backin and started to go and had no power and the smoke came out again. I found out that the whitish smoke was coming out of the open element air filter for the engine intake; and increased in itensity with engine rpm.
I am don't know what is going on. I was told by a dealer that it could be that the timeing had jumped. Right now the truck is at home in the garage and I am four hours away at college. I go home at the end of this week and hope fix it. Has anybody heard of this or have any ideas on what is going on?
-Pete
I have a 91 f150 with a 302, aod, reg cab, long box. I was getting on to the freeway about 20minutes form home, when my truck lost a lot of power and it didn't want to accelerate. Then a couple minutes later I noticed white smoke coming out from under the hood. All gauges said every thing was fine, but I pulled over and popped the hood and saw no leaks and no smoke; checked fluids and everything was good. no odd noises either. So i got backin and started to go and had no power and the smoke came out again. I found out that the whitish smoke was coming out of the open element air filter for the engine intake; and increased in itensity with engine rpm.
I am don't know what is going on. I was told by a dealer that it could be that the timeing had jumped. Right now the truck is at home in the garage and I am four hours away at college. I go home at the end of this week and hope fix it. Has anybody heard of this or have any ideas on what is going on?
-Pete
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New User
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From: Rice Lake, WI
thanks I'll take a look at that.
Has anyone had something like this or heard of anything like this happening? I am trying to figure out weather it would be worth fixing this, what ever it is that is wrong with it, or getting a rebuilt.
Has anyone had something like this or heard of anything like this happening? I am trying to figure out weather it would be worth fixing this, what ever it is that is wrong with it, or getting a rebuilt.
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Joined: Aug 2003
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How many miles on the motor?
Timing could be an issue. It would have to be way off to get flow coming back out of the filter. Haven't heard of a chain jumping too often but I guess it could happen. Also consider the distributor. It advances timing as rpm increases which would make a timing problem get even worse with higher rpm's.
Timing could be an issue. It would have to be way off to get flow coming back out of the filter. Haven't heard of a chain jumping too often but I guess it could happen. Also consider the distributor. It advances timing as rpm increases which would make a timing problem get even worse with higher rpm's.
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Joined: Nov 2003
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From: El Paso Texas
Originally posted by kennyrrt
? Catalytic convertor? Pull the o2 sensor, fire it up, see what happens.
? Catalytic convertor? Pull the o2 sensor, fire it up, see what happens.
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From: Rice Lake, WI
Will a clogged up cat cause whiteish smoke to come out of the intake?
When I put exaust on the truck I cut off the second cat to run 3" out to a glasspack then dualed into 2". So it still has the first one. Right now the front of the engine is toren apart, I was trying to get to the timing chain. The cover has all the bolts out and I just have to get the crank pully/dampener off. I am really hopping to get this figured out and fixed here over X-mass break.
When I put exaust on the truck I cut off the second cat to run 3" out to a glasspack then dualed into 2". So it still has the first one. Right now the front of the engine is toren apart, I was trying to get to the timing chain. The cover has all the bolts out and I just have to get the crank pully/dampener off. I am really hopping to get this figured out and fixed here over X-mass break.
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Senior User
Joined: Nov 2003
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From: El Paso Texas
I'm not sure if it would cause the whitish smoke or not, but a disintegrating catalytic converter would cause the sudden loss of power you describe. I've seen several instances of this occuring on other vehicles. I'm a big advocate of eliminating things in order of cheapest cost and easiest to diagnose, and this falls into that category. It always sucks to spend time and $$ only to find out the problem was something simple.
Good luck, hope it is something simple (and cheap!)
Good luck, hope it is something simple (and cheap!)
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From: Rice Lake, WI
hey, thanks for the help so far.
I have another problem now. I started to "remove" cut off the pre cat ( second one all ready removed awhile ago) any way I cut through the bottom pipe and the sawzall blade I had wasn't long enough to total cut the top pipe. I got about half of the top cut and towards the bottom there was oil comming out of the cut I had made. Not alot But enough to drip out. I think that pipe comes from the passenger side bank.
Also there is quite a bit of oil where the motor and trany are conected. That means that my rear main bearing is leaking right?
What does oil the exaust pipe mean? Is my engine shot?
I have another problem now. I started to "remove" cut off the pre cat ( second one all ready removed awhile ago) any way I cut through the bottom pipe and the sawzall blade I had wasn't long enough to total cut the top pipe. I got about half of the top cut and towards the bottom there was oil comming out of the cut I had made. Not alot But enough to drip out. I think that pipe comes from the passenger side bank.
Also there is quite a bit of oil where the motor and trany are conected. That means that my rear main bearing is leaking right?
What does oil the exaust pipe mean? Is my engine shot?
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New User
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From: Rice Lake, WI
I dont know what the compresion is right now. The engine is stock 302 as far as mods. I will try to pick up a compression tester tomarrow. I am really starting to get fed up with this motor alegidly the truck has only 60k miles on it, It looked to be in very good condition when I bought it about a year ago. I think I got screwed. oh well got to make the most of it. I thank you guys for bearing with me and hopfuly I can get this fixed quick or find somebody with a good mustang engine.