Need help here! BAD!!!
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Senior User
Joined: Jul 2001
Posts: 119
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Need help here! BAD!!!
Please Help! I have a 1991 F150 302 4x4 stick. Here is my problem last week the truck strated running/idling like crap and stalling out. I have replaced all the plug wires, cap, rotor, and plugs. I checked the coil and that test out ok. I also check the power going into the tfi module and that ok also.It will run but very bad. I sprayed water on the headers and the number 1,4,5,8 cylinders it turns to steam, but on the inside two cylinders (2,3,6,7) the pipe stays wet.
If I pull a plug it is soaked. The spark also looks alittle weak on that cylinder. So I am thinking, somthing to do with the injector?? Distributor (I tried a spare and the samething)?? or ???
PLEASE HELP! I am going insane here
If I pull a plug it is soaked. The spark also looks alittle weak on that cylinder. So I am thinking, somthing to do with the injector?? Distributor (I tried a spare and the samething)?? or ???
PLEASE HELP! I am going insane here
Laughing Gas
Joined: Jul 1999
Posts: 1,048
Likes: 22
From: Lacey, WA
Need help here! BAD!!!
Gates,
When you say that 2 header tubes stay wet did you mean the 2 inside tube on the same bank? Also when you said your plugs were wet do you mean these same 2 cylinders? If yes, and you have already changed the obvious stuff you might consider running a compression test. You may have blown a head gasket. It would have to be blown pretty bad to display your symptoms. I don't know alot about your model year,.... you say it is fuel injected. I take it that you have multi-point injection i.e. one injector per cylinder? If so (I don't know) can you swap injectors with other working cylinders to see if the problem moves to the new one's location? Like I said I don't know alot about new stuff. Good luck and post your results.
Lee
When you say that 2 header tubes stay wet did you mean the 2 inside tube on the same bank? Also when you said your plugs were wet do you mean these same 2 cylinders? If yes, and you have already changed the obvious stuff you might consider running a compression test. You may have blown a head gasket. It would have to be blown pretty bad to display your symptoms. I don't know alot about your model year,.... you say it is fuel injected. I take it that you have multi-point injection i.e. one injector per cylinder? If so (I don't know) can you swap injectors with other working cylinders to see if the problem moves to the new one's location? Like I said I don't know alot about new stuff. Good luck and post your results.
Lee
