I have an 87' Supra and it runs great until it hits running temperature... It is like a switch is thrown and the idle will drop and stall sometimes...when driving it wants to buck and even backfire! I have looked for vacuum leaks dont see any though. Any ideas would help. Thanks.
Temperature related engine trouble mystery
- Thread starter thunderz
- Start date
Check the simple stuff first........plugs ,wires, dist. cap, button. Start with some things like that and start replacing stuff that doesnt cost alot. Thats what i did and my dead cylinder stopped.
Start checking the sensors on the engine. Use the TSRM and an electrical meter and start checking those.
antman said:
well I tested the TPS and it didnt read the way it was supposed to for one of the tests...infact it was an open circuit...so hopefully thats what it is and not the begining of a goose chase.
Doesn't sound like it would be your tps because that would cause problems no matter what temp it was at. On my car I replaced some vac hoses with silicone ones...the one that connects the P/s pump with the intake manifold would heat up and start to close as the temp in the engine bay rose. Definitely get your codes fixed and then check the vac hoses.