I have a 1994 deville concours with the northstar engine, and when ever i go about 50mph or faster my ses light comes on. The only code i pull is the p039 history. Does any one how i can get rid of it thanks.
p039 - Torque Coverter Clutch/Viscous Converter Clutch Engagement Problem
You trans is getting slippage during high engine load. The PCM monitors engine rpm and vehicle speed and compares them. A code will set when the engine speed exceeds a predetermined value for the current vehicle speed.
Do a search on the the forums for "TCC" or "P039". This has been touched before. One reason it may be coming up in history is because you are checking codes when you aren't above 50 mph. You can check codes while driving if you are careful not to get too distracted.
I've never been too good navigating through our forum.
Been a Caddi man all of my 60 years. I've owned well over 19 old school beasts, plus an Allante. Good luck trying to find an old school crest and wreath 'Heritage of Ownership' badge.
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any help would be great.
So when i start my 2001 deville there is a high pitched noise that almost sounds like a vacuum. And a clicky noise that comes from the dash. Dont know much about cars. Just wondering if there is anyone else out there that has had the same issues
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