Re: GM 350 TBI Mystery Issue, Any help out here
Check any and all grounds first. There is one at the thermo. housing, check for frayed wires. I have a 93 here that died one day. it acted like the timing was off a tooth, doggy under load, didnt want to idle. It finally got to the point where it wouldnt run at all unless you kept the throttle pinned to the floor. I was getting ready to replace timing chain and gears and a friend told me to replace the coolant temp sensor. HUH? I thought he was nuts, he said nope just do it. Well for $7 bucks wth. It runs like a champ now, he explained after that in 93 they really dont have much for computer controls but they are notorious for the cts to go bad. When it does it reverts to the default setting in the comp of -140 degrees and dumps fuel to compensate. I`m not saying thats the prob but you can pull plugs and take a quick look, if they are wet I would give it a shot. G/L
Check any and all grounds first. There is one at the thermo. housing, check for frayed wires. I have a 93 here that died one day. it acted like the timing was off a tooth, doggy under load, didnt want to idle. It finally got to the point where it wouldnt run at all unless you kept the throttle pinned to the floor. I was getting ready to replace timing chain and gears and a friend told me to replace the coolant temp sensor. HUH? I thought he was nuts, he said nope just do it. Well for $7 bucks wth. It runs like a champ now, he explained after that in 93 they really dont have much for computer controls but they are notorious for the cts to go bad. When it does it reverts to the default setting in the comp of -140 degrees and dumps fuel to compensate. I`m not saying thats the prob but you can pull plugs and take a quick look, if they are wet I would give it a shot. G/L
