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Cadillac Repair/94 seville sls 4.6northstar

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Follow-Ups to Answer from Expert Bill Cherniwchan

josh wrote at 2007-04-03 02:02:22
I had the same problem, but it would overheat if the car didn't have the defrost on.  It turned out to be the wrong thermostat that was installed.

eagle wrote at 2007-05-02 07:04:47
northstar motors are famous for head gasket problems, its probably putting exhaust gasses into the cooling system heating it up more than usual causing your overheating problem. if you know a garage with a gas analyzer see if they would use the tailpipe sniffer to check at radiator (without putting into the antifreeze).  

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Bill Cherniwchan

Expertise

I can answer questions about general maintenance,electrical, driveability,brakes,a/c,engine repair,computers,basic steering and suspension, basic transmission. I can`t answer transmission rebuilding,carburator rebuilding or differential rebuilding questions.

Experience

worked as a cadillac tech. from 1984 to 2000

Publications
10W40 advice website

Education/Credentials
A.A.S. Degree with an Automechanic major

Awards and Honors
ASE Master tech since 1984, Cadillac Master Tech for 9 years

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