Okay guys. My truck started getting VERY hard to start a couple weeks ago. Lots and lots of cranking would it it started. But finally it just didn't even attempt to start at all, even on a 65*F day. It will start when it's plugged in only. Glow plugs seem to be fine.

 

well would say you have problem with glow plugs

 

Low compression would effect it while running right? Because once it starts, the truck runs perfectly.

 

ya and with low compression it usually doesnt sound like a diesel anymore

 

Then it must not be low compression. Could a few or more bad glow plugs cause a no start condition? I haven't cranked the thing for REAL long in order to save my starter, so I'm not sure if it'd eventually start or not.

 

maybe your glow plug relay how old are the glow plugs

 

I just replaced my gp relay a couple weeks ago. The gp light doesn't seem to stay on for very long. Also, I've had the truck almost 2 years and haven't changed the glow plugs.