So i just finished the fuel pressure test. With the key on engine off ot had around 5 psi and went down to 0 psi. When i started the truck it read 80 psi!!! And when i took off the vaccum line it was 83 psi. Is ot the fuel pump or the fuel pressure regulator?
Thanks for the replies guys! Now i have the codes p0172 and p0175. I also noticed that my expy cranks too long to turn on. I was thinking of changing the fuel pressure regulator but i cant seem to find it. A local mechanic told me he wants to change the fuel pump. What do you guys think?
Whats up you guys im in need of some help. I was driving down the freeway when all of a sudden my expy started to missfire. Hooked up my scanner and said it was code p0308. So i went home removed coil pack and lucky me i found the spark plug full of coolant. I know these engines are notorious...
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