Lincoln Repair Questions? Ask a Mechanic for Answers ASAP
Hello, lets cover some basic information. What kind of vehicle is this and engine size etc.
Ok and whats the truck doing, lack of power on accel, runs poor at idle and no power? No diagnostic trouble codes stored? He hollowed out the catalytic convertor?
Ok and no check engine light is on, no codes are stored, it passes a key on engine off and key on engine running test? No vacuum leaks for the engine? How many miles are on it?
Ok there are a number of things that can could a rough idle and stalling. Problem with the mass air flow sensor, lack of fuel pressure, a vacuum leak, exhaust restriction or an issue with the base engine(compression) Not sure if this is a 5.4 3 valve engine or 5.4 2 valve engine. if its a 3 valve engine I can tell you a few other things to check
Yes but if it has a vacuum leak it should also set lean codes p0171/p0174 . Is it a 3 valve triton engine or 2 valve, the vin number would tell me more the timing chain could have jumped time as well.
Well my answers are limited to the information you give me.
well then ill opt out and see if another expert can be of more assistance. the 17 digit vin number would help and it seems like im not getting all the information i need
Like the last expert stated we need to know what engine is in the truck. 2, 3, or 4 valve. But first thing that comes to mind is a bad injector. An injector flow test should be completed.