GM tranny's, no dipstick!

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bruceb

Diamond Member
Aug 20, 2004
8,874
111
106
My car is a 1990 Grand Prix and it is inching up on 210K .. tranny replaced at 150K due to loss of 4th gear hub splines. Engine at 193K due to bearing failure caused by coolant leaking into engine (GM 3800 engine, with the infamous lower intake manifold gasket problem) which I had to replace twice, once around 110K, then at 190K (dealer swore no damage occurred to bearings, then they failed 3K later) Exterior body is still in very good shape for it's age and being used in NJ winters.
 

BUTCH1

Lifer
Jul 15, 2000
20,433
1,769
126
My car is a 1990 Grand Prix and it is inching up on 210K .. tranny replaced at 150K due to loss of 4th gear hub splines. Engine at 193K due to bearing failure caused by coolant leaking into engine (GM 3800 engine, with the infamous lower intake manifold gasket problem) which I had to replace twice, once around 110K, then at 190K (dealer swore no damage occurred to bearings, then they failed 3K later) Exterior body is still in very good shape for it's age and being used in NJ winters.

193K is actually not bad for the LIM gasket, most 3.1-3.4's didn't go that far. I had an '83 Cutlass with the old 3.8 Buick V6 (I called it the "gutless", way underpowered) that had a fuel pump leak and put it the crankcase, while sitting at a stop light a massive blue plume came out so I stopped and checked the oil, it was 4 quarts high, same result, fried the bearings..