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

24,345

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 of 1 people found this 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 760
#3 John Pate
John Pate
Reputation 480
View All

Related Models For Sale

Used Buick LeSabre
14 Great Deals out of 1,924 listings starting at $995
Used Buick Regal
117 Great Deals out of 10,863 listings starting at $3,995
Used Chevrolet Impala
521 Great Deals out of 31,725 listings starting at $1,450
Used Buick Park Avenue
440 listings starting at $4,991
Used Toyota Camry
1,011 Great Deals out of 90,917 listings starting at $650
Used Honda Accord
813 Great Deals out of 84,287 listings starting at $1,050
Used Chevrolet Malibu
950 Great Deals out of 79,654 listings starting at $1,500
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Nissan Altima
1,033 Great Deals out of 81,564 listings starting at $1,200
Used Honda Civic
656 Great Deals out of 88,603 listings starting at $995
Used Toyota Corolla
785 Great Deals out of 73,830 listings starting at $1,995
Used Ford Taurus
249 Great Deals out of 20,433 listings starting at $699

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.