Engine 1991 mustang gt automatic

[jrichker]

Changes fuel filter and nothing, then changed the fuel pressure regulator and it fired right up, added coolant as it was running and it started to idle really high. Ran for about 5min and I shut it off. Let sit for maybe 2mins and it wont fire at all.

When it won't start, do the checklist.

That way you will find what isn't working and needs further troubleshooting or repair

 

[Cody.B1]

I did the checklist, like I said I added coolant because it had barely any, I need to do a leak down test. I believe I cranked it until there was no coolant present in the cylinders "leaking in cylinders' or the fuel is so dirty it is getting dirt/rust and blocking the regulator. I'm not the best mechanic but I can read and use the book. This is what I'm marveled. I'll keep you guys updated don't want to waste your time