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1992 Mitsubishi 3000GT Repair Question


Topics covered: Battery, Body, Click.
Mileage: 190,000 miles.

Asked on July 29, 2012

Why will my car not start in very hot weather?

Car runs great, however recently when it has been very hot outside, the car won't start, it will start as a low idle then eventually get only the click as it tries. I have replaced all the fuses, the fuel relay and it still happens. I'm not sure what to check, it seems to only happen when it is very hot inside the car.
Avatar Asked by Moonviper2002

Answer

Replied on July 29, 2012

have the battery load tested first.

check the fuel pressure as well.

Roy

Tiny Answered by ASEMaster6371 (expert)
24,825 answers provided
Replied on July 29, 2012

For the low idling, check the ISC and throttle body. Clean them and retest.

For the clicking, apart from the battery conditions, check the wiring connections and condition.

Tiny Answered by KHLow2008 (expert)
39,832 answers provided
Replied on July 31, 2012

Battery is good, the clicking is from the starter, it will almost start, low idle then die, then turn over and die, then attempt to turn over, then if i keep attempting you'll only hear the starter. It seems like its getting zero fuel, and it only does it when its been sitting in the sun or in very hot weather, i can run the car for 200+ miles and be fine as long as it stays cool inside the car, but as soon as the inside gets hot as hell, thats when the problems start happening. Fuel pressure is good as well. If it is the throttle body wouldnt it be a constant problem?

Tiny Response from Moonviper2002
1 question asked

Replied on July 31, 2012

Does applying some throttle pressure gets the engine started?

The throttle body and ISC would act up when operating temperature increases. They can cause excessive low idling and would start and stall unless accelerator pressure is applied.

Tiny Answered by KHLow2008 (expert)
39,832 answers provided