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Cadillac STS/STS-V: Electrical System

36 messages,  Last post on Jun 03, 2009 at 6:24 PM

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What is this discussion about? Cadillac STS, Cadillac STS-V, Electrical, Sedan

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#31 of 36 Starting my '99 Cadillac STs by dianejoy May 01, 2008 (10:33 am)
My STS with Northstar engine started just dying while I was driving - no matter what speed or whenever, no rhyme or reason. It has pretty much stopped doing that, but now I have trouble starting it with anywhere from 2 to 60+ tries to get it started. Had AAA come over to haul it to a garage, and he started it by hooking on to the engine instead of the battery. It started and he said it most likely needed a new battery since that one was the original. Got a new battery, car started immediately then the next time I went to start it, it took about 30 tries. What is going on? Replies to this message: karin01 (Sep 15, 2008 6:00 pm) rrooples (Mar 31, 2009 9:59 am)
#32 of 36 Re: Starting my '99 Cadillac STs [dianejoy] by karin01 Sep 15, 2008 (6:00 pm)
Replying to: dianejoy (May 01, 2008 10:33 am) Diane - What ever happened with your car? Did they find out what was the problem?? I have a 2001 STS that has been in twice for the very same reason. I could be doing 60 miles an hour on the Parkway and the car will completely turn off - no power steering, no brakes... or I could be idling at a light and it does the same thing. I heard some STS's were recalled because of this. HELP ! I don't want to get rearended becasue the car shuts off. Can Anyone advise me? Replies to this message: rrooples (Mar 31, 2009 9:59 am)
#33 of 36 2007 STS Electrical System by bnye Jan 03, 2009 (7:42 pm)
My STS spent more time at the dealership with electrical systems issues than in my garage. I had a lemon of a car. At 800 miles, a new engine was needed. Electrical systems issues haunted me the entire 18 months of ownership, before GM bought the car back.
#34 of 36 1988 Cadillac Seville STS by eberseg Mar 24, 2009 (1:20 pm)
I have a 1988 Cadillac Seville STS that I bought used with cooling fan problems. The fan was grounded with a piece of wire to the battery. The information center displayed,"Cooling Fan Fault." I used the car as is.Then the "Gear selection fault" was also displayed. After that,the digital display slowly started to flash on and off. Now the instrument panel is mostly off. In the morning's it's on for awhile and everything on the panel is working. Then the display shuts off. The car is still running as normal but I can't read any of the functions. The self diagnostic shows the codes:   B120-B127-B441 current E052 History B552 History   It is very difficult to drive the car without seeing the instrument functions. Please help me locate the source of the problem.
#35 of 36 Re: Starting my '99 Cadillac STs [karin01] by rrooples Mar 31, 2009 (9:59 am)
Replying to: karin01 (Sep 15, 2008 6:00 pm) Yep.   You need to have the crankshaft postition sensor replaced.
#36 of 36 Brake light problem by lilczar Jun 03, 2009 (6:24 pm)
Cadillac STS , one brake light on the drivers side doesnt operate when brake pedal is pressed. When the keyless entry is used the brake light works. There is no brake light fuse in box. Cant figure out how it can light up with the keyless entry, but not when using the actual brake itself...Any ideas???

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