Hard to start???
#1
Hard to start???
First off I just want to say I have been going thru your forum and yall have some great info. But the fact is I came across this forum while I was looking for information on a problem I'm having with my old truck. And I hope that someone will be able to help. I have gone thru a saw a few people that are having some of the same problems but I need some reassurance.
I have a 98 K1500 with a 5.7, if the truck sits for about 12 hrs it is hard to crank, it turns over and over and will finally will hit and it may diesel a little then die and after a time or two it will crank with low RPMs and I can give a little gas and it will clear up. Now I let it sit for 3 days and I can not get it to hit a lick.
My first thought is a fuel issue so I checked fuel pump and it is running. I checked the pressure and with the key on it is about 61psi. (I'm not sure what it is supposed to be). I have read some people are saying it needs 48 - 54 I've heard 55 - 65.
Do I have to much pressure? Could I be flooding the engine out? And this would mean that it is a pressure regulator that is bad, correct?
And yes the truck is getting fire to the plugs.
I have a 98 K1500 with a 5.7, if the truck sits for about 12 hrs it is hard to crank, it turns over and over and will finally will hit and it may diesel a little then die and after a time or two it will crank with low RPMs and I can give a little gas and it will clear up. Now I let it sit for 3 days and I can not get it to hit a lick.
My first thought is a fuel issue so I checked fuel pump and it is running. I checked the pressure and with the key on it is about 61psi. (I'm not sure what it is supposed to be). I have read some people are saying it needs 48 - 54 I've heard 55 - 65.
Do I have to much pressure? Could I be flooding the engine out? And this would mean that it is a pressure regulator that is bad, correct?
And yes the truck is getting fire to the plugs.
#2
i have a 97 c1500 and the literature i've seen says the fuel pressure should be between 60 - 66 psi for v6 AND small block v8 for 1996 and later models. your 98 will be the same. your fuel pressure is fine.
#3
Hope this may help someone.
It was the Fuel pressure Regulator. After removing the plemuim I could see where it had been leaking there was a clean shinny place on the lower intake directly under the Regulator. Replaced and cranked, nice and easy 45min job.
It was the Fuel pressure Regulator. After removing the plemuim I could see where it had been leaking there was a clean shinny place on the lower intake directly under the Regulator. Replaced and cranked, nice and easy 45min job.
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