93F-150 5.0L Missing and chugging. Please HELP
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93F-150 5.0L Missing and chugging. Please HELP
I have a 93 F-150 5.0 litre automatic 4WD club cab that is continually getting a worst miss and chugging problem. Replaced O2 sensor Plugs Wires Erased all codes and still same ole same ole thing. Local Ford dealer can find nothing. 125,000 miles. I'm completely lost as far as a next step. Would appreciate any help. Thank you.
Bob93
Bob93
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93F-150 5.0L Missing and chugging. Please HELP
[updated:LAST EDITED ON 17-Jun-02 AT 02:28 PM (EST)]When was the last full tune up?
I would start by lifting the hood, start the engine, then very carefully listen and or feel all the hoses and see if you have a vaccuum leak. A vaccuum leak will cause all kinds of problems including running very rough.
Its possible some hose has a leak or has become disconnected. As all these air hoses and vaccuum lines get old they will start leaking. The fittings become worn and leak.
If you do not find this to be the problem then post back here for more things to try.
I would start by lifting the hood, start the engine, then very carefully listen and or feel all the hoses and see if you have a vaccuum leak. A vaccuum leak will cause all kinds of problems including running very rough.
Its possible some hose has a leak or has become disconnected. As all these air hoses and vaccuum lines get old they will start leaking. The fittings become worn and leak.
If you do not find this to be the problem then post back here for more things to try.
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93F-150 5.0L Missing and chugging. Please HELP
[updated:LAST EDITED ON 17-Jun-02 AT 04:08 PM (EST)]I installed a new fuel filter about 2000 miles ago and have already checked vaccum hoses. The truck runs like a champ till it warms up then it starts the missing and chugging. Thanks for all the help.
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From: mukilteo usa
93F-150 5.0L Missing and chugging. Please HELP
I have a '90 302 that under load misses, chugs. shop checked everything and their final diagnosis is "fuel injectors are breaking down internally." I'm going to swap out a set tomorrow to see if that works. truck has 120k.
Fleet Mechanic
Joined: Aug 2000
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From: Texas
93F-150 5.0L Missing and chugging. Please HELP
How about the Catalytic convertors? Are they original, and have you ever checked them? Here's an easy way to check.
Have someone put their hand over the end of the exhaust pipe, rev the engine and see if it has enough pressure to push their hand away from the pipe. If not, you have some bad restrictions in the exhaust system, and this could be the ultimate cause of your problem......
Have someone put their hand over the end of the exhaust pipe, rev the engine and see if it has enough pressure to push their hand away from the pipe. If not, you have some bad restrictions in the exhaust system, and this could be the ultimate cause of your problem......
