X-Cutioner
OBS Enthusiast
- Joined
- May 4, 2012
- Messages
- 54
- Reaction score
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This is the first time i have posted here, but i have posted this same problem on other sites and still have not gotten a fix.
My dad has an 89 c1500 stock 350tbi with 700r4 trans with only 100K on it
about year ago he started having issues with power loss, I'm talking take off from a light and just nose dives right there. it started off just being occational and finally got to every time. 1 day i finaly got to drive the truck and it did it to me but the power never came back and acted like, and sounded like i was driving a 4 cylinder. i was able to get it back to his house and pulled the filter housing off and found that the right side injector was not firing.
to shorten the story up a bit i pulled the battery and it started working again but would shut off a little later and the guage cluster would act goofy.
so we installed
used pcm
new pcm
after installing both pcm's it would run great for around a week and get screwed up again so we started throwing more parts at it
used distributer
remaned distributer
replaced because the bearings in the stock ones were shot and growling when the engine was running
plug wires
plugs
ignition module
egr valve
the egr had a crack in the bladder and was causing a vacuum leak
after all these things being installed the problem persisted untill it began knocking some time in novermber
i did some more research and told him that it could be the head gasket, but he didn't want to believe it. 3 days later it finally blew
so
new head gaskets
heads machine and rebuilt due to leaky valve guides
im not sure what else was done due to may dads friend doing the job
now with all that being done it still had the problem with power loss
i was with my dad today running wrecker calls and asked him if he wanted me to drive it home becuase the truck sits quite a bit
he told me that it acts up every once in a while but clears up and doesn't have any more issues
i took it home and about 15 miles from his house it started idling really ruff while i was sitting a red light, it changed, i hit the gas, no power for about 20 seconds. after that i heard a pop from the drive line, the tires chirp (limited slip) and it took off without any more problems.
i got it on the interstate and went to merge, hit the gas and no power at all. i looked at the dash, no warning lights
' drove it like that for about 10 miles and couldn't get it above 60
sorry for this long story
but i had to tell it so everyone knew what has been done so far
this time i was really watching the guages and noticed the oil pressure had maxed out and stayed there. i don't know but could the oil pressure sensor be causing these problems
please help because this has been going on for over a year now and is really wearing on us, we both like the truck and don't want to get rid of it
if you all have any ideas just throw them out here
THX
My dad has an 89 c1500 stock 350tbi with 700r4 trans with only 100K on it
about year ago he started having issues with power loss, I'm talking take off from a light and just nose dives right there. it started off just being occational and finally got to every time. 1 day i finaly got to drive the truck and it did it to me but the power never came back and acted like, and sounded like i was driving a 4 cylinder. i was able to get it back to his house and pulled the filter housing off and found that the right side injector was not firing.
to shorten the story up a bit i pulled the battery and it started working again but would shut off a little later and the guage cluster would act goofy.
so we installed
used pcm
new pcm
after installing both pcm's it would run great for around a week and get screwed up again so we started throwing more parts at it
used distributer
remaned distributer
replaced because the bearings in the stock ones were shot and growling when the engine was running
plug wires
plugs
ignition module
egr valve
the egr had a crack in the bladder and was causing a vacuum leak
after all these things being installed the problem persisted untill it began knocking some time in novermber
i did some more research and told him that it could be the head gasket, but he didn't want to believe it. 3 days later it finally blew
so
new head gaskets
heads machine and rebuilt due to leaky valve guides
im not sure what else was done due to may dads friend doing the job
now with all that being done it still had the problem with power loss
i was with my dad today running wrecker calls and asked him if he wanted me to drive it home becuase the truck sits quite a bit
he told me that it acts up every once in a while but clears up and doesn't have any more issues
i took it home and about 15 miles from his house it started idling really ruff while i was sitting a red light, it changed, i hit the gas, no power for about 20 seconds. after that i heard a pop from the drive line, the tires chirp (limited slip) and it took off without any more problems.
i got it on the interstate and went to merge, hit the gas and no power at all. i looked at the dash, no warning lights
' drove it like that for about 10 miles and couldn't get it above 60
sorry for this long story
but i had to tell it so everyone knew what has been done so far
this time i was really watching the guages and noticed the oil pressure had maxed out and stayed there. i don't know but could the oil pressure sensor be causing these problems
please help because this has been going on for over a year now and is really wearing on us, we both like the truck and don't want to get rid of it
if you all have any ideas just throw them out here
THX