LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Ok, my car is really pissing me off!

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Old 03-10-2003, 08:38 PM
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Ok, my car is really pissing me off!

Ok, overheating again. I changed the engine temp sensor, then it was ok for like a day. Now when I go from 1-3rd gear, my engine temp goes to like 260 and oil pressure is like almost 0!!! Then, when I go faster in 4-6th gear, the temp goes down to like 170ish, but still VERY low oil pressure. What the hell is the problem here, I honestly have no clue.
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Old 03-10-2003, 09:05 PM
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Try bleeding any air that might be in your system, see if that helps the overheating problem.
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Old 03-10-2003, 09:45 PM
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Maybe a head gasket. What is the oil pressure like before the trouble starts? How are the fluid levels? I would also check the fans to be sure they are coming on. That low oil pressure would worry me first I think. You caould also try removing the t-stat. Are you sure it is the correct one? I have heard that putting a "foward flow" t-stat in our cars will cause alot of trouble.
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Old 03-10-2003, 10:17 PM
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Are you sure your oil pressure is near 0? If it is then you should hear your lifters clattering, especially off idle. How quickly does your temp gauge change? Do you hear detonation? An overheating engine should be spark knocking unless the pcm is really pulling the timing back, then it should really be sluggish. Maybe you have a problem with you instrument panel. Grounds? Powers? Good luck.
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