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Sedans Pontiac Grand Prix Pontiac Grand Prix Flashing low coolant light
18 messages, Last post on Jul 12, 2009 at 7:12 PM
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I have 1997 grand prix, with 3800 series II engine. This has start about 3 days ago. I have checked the coolant level, which is at the proper level. But before this latest problem started I have the abs light on, the check tire light and the track off light on. This all start after a 90 degree day in Chicago in may. It only happened when the temperature was over 75 and did not happen all the time, it seamed to happen the most when I hit medium sized pot holes or ruff rail road tracks. I have check the computer for any errors or problems, but there is not fault codes displayed. At this point I do not know what to check. Any help will be greatly appreciated.
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Hi A VERY common problem is the large wire harness on left (drivers side) front. The harness rubs the Air Conditioner Accumulator mounted below the air cleaner box. After it rubs enough, it will start to cause "Ghost" ABS problems as the ABS wire shorts to the accumulator. It WILL not set codes (usually). It WILL actuate the ABS system for VERY short periods of time (milliseconds). It will aslo play havoc with other subsystems, like the coolant level sensor.
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Replying to: pawl (Jun 21, 2007 6:06 pm) 
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| I am having the same problem on my 94 GP, could this also cause problems with the speedometer reading? | |
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Replying to: doctorhardware (Jun 13, 2007 6:43 pm)
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Replying to: doctorhardware (Jun 13, 2007 6:43 pm) |
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Replying to: gary1967 (Aug 28, 2007 6:50 pm) |
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Hello, My low coolant light is on as well, and my husband has changed the sensor, hoses and also flushed the radiator. Meanwhile everything else is running smoothly and the coolant level is as was before right where it should be and is not low at all. Is there anything that my husband can check/replace in order to fix this problem? Any help would be greatly appreciated. Thanks, Cherokee
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Replying to: pawl (Jun 21, 2007 6:06 pm) I too have every light on the dash on as well. I will check the harness. I have another issue that popped up. My temp gauge rises above 210 as I'm stopped and levels back to normal as I move. What do I check first? Thanks
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Replying to: dwalt12 (Sep 26, 2007 7:14 pm) Anyway, with my car it was just due to the extreme heat of the day and when I was stopped in a parking lot the temp would go up and when I pulled out of the parking out and back onto the highway it went back to where it normally sits. Same thing happens at traffic lights, as my car still does that in really hot weather. The main thing I can say and I know it's not much help but at least you know the termostat is working. 
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