Hello all. New to this forum, and I have some questions.
My girlfriends car.
All within the last month car would randomly not want to start. Didn't matter the weather. Was hit or miss if car would start, but once started ran ok. Recently, car would stall while driving. Would have to wait a few minutes and it would start back up and drive fine.
Engine light came on and had code read: Cam position sensor. I went to install that and noticed oil and grunge build-up on top of intake manifold. I'm not new to 3800's and knew that an intake manifold and plenum gasket are needing replaced. Been there before, done them before.
Went ahead and replaced intake and plenum gaskets. Also replaced cam position sensor, followed by a coolant flush and oil change. Car ran great for about 2 days and then stalled again. This time no "check engine" light. Also, sometimes engine would not start after sitting for random amounts of time.
Did a little research and went ahead and replaced the fuel pump relay. Car ran great for 2 days.
Yesterday car started right up, but died after about 30 seconds of idling. Would not start up again.
Checked for spark and fuel pressure and all looked good. I was angry so I walked away from it. Today I go and car fires right up like nothing happened. Check engine light came on, so I went and had the code read again, cam position sensor!!
Car started and ran fine. So I drove it home so I can check the wiring at the cam sensor all looks good. Car started up and idled for about 10 mins without issue. I shut it off to reinstall coolant reservoir. Car will not start!!
Help!!