I love this truck but wanna scream.
After a rodeo at 2 dealerships of darts being thrown til one stuck( new wiring to the TPS was ran from the (fuse block?), to fix the reduced engine power syndrome)
it now immediately after this repair, is getting 12 ish MPG. has a 500 RPM idle and trys to die but wont.
NO codes.
the air filter is new
cleaned the not dirty MAS with aerosol solvent.
it was suggested I replace the plugs and wires.

it was getting 15.6 before this latest repair and IIRC the idle was around 700 rpm. AND certainly wasnt always acting like it was going to die at an idle.
any thoughts are appreciated before I start part swapping.

many thanks guys

 

How many miles are on the plugs and wires? I have seen dirty or worn plugs and wires cause these problems. Who ran the new TPS wires and are you sure it was done correctly?

 

this issue didnt exist when i drove it into the dealership, only after the TPS circuit was reran.
the plugs and wires have 95000 on them.


the dealership installed the TPS circuit.

 

Did you take it back to the dealership to have them correct the problem?

 

they are a customer of mine.
I know the service advisor and service manager personally.
Sticky Situation.
I, after a tank of fuel, went back and inquired what could cause it.
We couldnt have caused that. change the plugs and wires, clean the MAS ect.
I wont spend another dollar there on this truck.
i have NO faith in the other dealership it 1st went to. it was in there 3 times for the reduced engine power with no fixes.only money down the drain.