I have a problem with my car overheating, and a shifting problem, can they be linked together??? I went to go check my fluid levels and my transmission has way too much in there, don't know how or why

Asked by Dec 06, 2015 at 10:47 AM about the 1999 Buick Century Custom

Question type: Maintenance & Repair

Seems my car eats thru the anti freeze and I
see a puddle near the transmission but not
enough to explain where it's all going

1 Answer

23,845

These cars have a big problem with upper and lower intake gaskets, causing loss of coolant, oil in coolant, etc. I can't see that getting into the transmission, but your trans cooler lines do run into the radiator, it's an 'in-rad' cooler, where it is surrounded by coolant. Trans lines are under higher pressure so generally if there is a leak, it's trans fluid into the radiator, not coolant into the trans. The rubber trans lines also tend to leak, especially at the clamp, in that case it just goes on the ground. Did someone just overfill the trans? Can you determine if it is trans fluid only? I really can't see coolant getting into a tran via trans cooler lines. How does the coolant in the radiator look? Try some NAPA block tester, and see if you are getting exhaust gases in the coolant, that is an indicator of a bad head/intake gasket. Another source of coolant loss, assuming it is not from leaking hoses, is the water pump, it can leak from the shaft if it is worn. You say coolant is puddling 'near the transmission,' although that doesn't guarantee the leak is back there (it can run along lines/engine/frame), it's still a good place to start leaking for your coolant leak - heater hoses, intake gasket, freeze plug, check the trans cooler lines haven't cracked at the radiator, etc. You need to address this asap, if coolant is getting contaminated it can't keep engine cool, if oil is getting contaminated it can't provide lubrication and bearings could fail. Good luck

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Buick Century Questions

Buick Century Experts

#1 John Saffrahn
John Saffrahn
Reputation 930
#2 Tom Demyan
Tom Demyan
Reputation 740
#3 John Pate
John Pate
Reputation 460
View All

Related Models For Sale

Used Buick LeSabre
5 Great Deals out of 1,944 listings starting at $1,500
Used Buick Regal
113 Great Deals out of 10,265 listings starting at $3,495
Used Chevrolet Impala
536 Great Deals out of 29,840 listings starting at $799
Used Honda Accord
786 Great Deals out of 88,046 listings starting at $1,150
Used Toyota Camry
824 Great Deals out of 90,868 listings starting at $850
Used Buick Park Avenue
433 listings starting at $3,500
Used Chevrolet Malibu
853 Great Deals out of 81,342 listings starting at $995
Used Honda Civic
515 Great Deals out of 89,619 listings starting at $1,299
Used Nissan Altima
858 Great Deals out of 79,910 listings starting at $1,800
Used Toyota Corolla
704 Great Deals out of 73,151 listings starting at $1,950
Used Chevrolet Monte Carlo
18 Great Deals out of 1,400 listings starting at $1,995
Used Ford Taurus
237 Great Deals out of 20,425 listings starting at $1,100