missing, stalling, rough idle

[plumbingsnice]

My 96 CC PSD is acting like it is missing. When I'm driving at constant speeds, the motor looses power and vibrates bad mainly on bottom end. If I gradualy increase the throttle it seems like it works itself out but only above about 2400 RPMs. When I'm down shifting to come to a stop and I push in the clutch and it will stall. I need some help. The truck has 115k miles on it and the problem seems to be getting worse by the day. Any ideas. Thanks

[Hayman]

Have you change the fuel filters that were i would start

[straycat]

Sounds like a fuel delivery problem, has it thrown any codes?

Gord.

[bigcountrysg]

Sounds to me like a bad injector.

[plumbingsnice]

I've replaced the fuel filter and it didn't seem to change anything. No, It hasn't thrown any codes. I'm worried that it may be an injector but why would it seem to run better on top end?

[bigcountrysg]

Have you checked your oil level, have you ever replaced the cps (cam positioning sensor). Low oil level or even old oil that may need changing can cause this as well. The cps acts wierd sometimes it won't the truck run at all, sometimes it runs like crap, sometimes it runs and dies all the time.

[SCUFFY828]

if its not turning on check engine light , probably not electrical, like big country said ,i would check oil level and is it new , dont just go buy parts until you do some diag

[plumbingsnice]

The trucks a 96 with 115k miles, what kind of diagnostic stuff should I do after I check the oil? Thanks

[SCUFFY828]

if the oil level is full and in good shape ,even though its not turning the light on i would get someone to pull codes , it can set a code and not turn the light on , and also run a fuel pressure check should be 45 to 55 lbs on that year model at ide and increse to 100 under load on the road

[bigcountrysg]

Originally Posted by scott whisenhunt

if its not turning on check engine light , probably not electrical, like big country said ,i would check oil level and is it new , dont just go buy parts until you do some diag

I mentioned the cps because my truck ran like it was puking out the tailpipe. Then it would die, never threw a code and never had the light turn on either. I talked to some people and they recommend I replace the cps. I did and my truck has ran great ever since that was about 48,000 miles ago.