The first thing i would check for is codes have you done that yet?Also do you have a multimeter to do some testing?you could have a bad coolant temp sensor it would make sense for your symptoms.

Answered by saturntech9 (expert)
23,157 answers provided

I don't have a reader for the newer stuff....Yet. It Does it hot or cold

Response from JHenriksen
3 questions asked

Hi saturntech9. How about low oil level / pressure and the fuel pump is switched on by oil pressure? I don't know which years or models that applies to but sure sounds like how that system acted.

Answered by caradiodoc (expert)
17,277 answers provided

Hey Doc, The fuel pumps that are integrated into the fuel pump circuit are done so as redundant power supplies for the pump. The relay will pre-empt the oil sender, unless it is bad.

Answered by Wrenchtech (expert)
14,724 answers provided

It wouldnt hurt caridodoc jhenriksen check your oil level see if its low.Also take it to a auto parts store like auto zone and have them scan the computer for codes.If you have any codes then let me know the exact code numbers not the code descriptions.Also a multimeter would be helpful to test things.

Answered by saturntech9 (expert)
23,157 answers provided

Oil level is good. I will get it scanned. I do have a mulitmeter.

Response from JHenriksen
3 questions asked

Alright let me know about the codes and we will go from there.

Answered by saturntech9 (expert)
23,157 answers provided

No codes, fuel pressure kinda dances from low to high 40s as i crank it over and its trying to start.

Response from JHenriksen
3 questions asked

Pull the fuel pressure regulator vacuum line off the nipple see if there is fuel coming out of the nipple.

Answered by saturntech9 (expert)
23,157 answers provided

Nope, its dry

Response from JHenriksen
3 questions asked