Question about 2001 Chevrolet Impala

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Low coolant light keeps coming on and now tire pressure sensor also comes on 2002 impala

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  • soconymobil Jul 24, 2009

    The tire pressure sensor came on after a flat tire that was replaced and will not go off. I spent over a $1,000 to have the coolant problem fixed and now the low coolant light will not go off.

  • David Shaub May 11, 2010

    Tell them to reconnect the sensors.

  • Bruce Hathcock May 11, 2010

    air up all the tires go to a tire shop and have them reste low air in tire and then put fluid in radiator and replce coolant cap.



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Ok now you give me some details . first how long ago did they do the repair? if its less than 6 months take it ack to tthe idiots and tell them to fix it, the tire sensor problem is due to having to reset the tire switch no bigge any store can do that autozone les swabe bridgestone tire anyone can do that but they need to fix the tire thats going low or it will come back on.I am serious take it back tothe people that fixed it the first time if yo have the paperwork then tell them to fix it you paid enought the first time and you are not paying them to be trainees.Next comes small claims court.

Posted on Jul 24, 2009


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Low tire pressure light keeps coming on, even when tires are at correct pressure

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My girlfriend has an 01 Impala that just keeps costing me. Ive fixed several things and worked my way around others. The LOW TIRE PRESURE light keeps coming on even though there are pretty good tires all...

For the engine noise, all I can tell you is that you must locate the source of the noise. You probably have a bad bearing, worn out alternator, or something similar. You should try removing the serpentine belt and start the engine to see if the noise is still there. If it is, then there is something wrong internally like a timing chain or something. If the noise is gone, then you need to inspect all the pullies that are driven by the serpentine belt including alternator, power steering, A/C, idler pulley, tensioner pully, etc.

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1. Check all of your tire sizes to make sure they are all the same size. I have seen many problems with people putting used tires on the vehicles that don't match the other tires in size. I have also seen this caused by tires that are the same numerical size but one is new and the rest are worn-out causing a difference in the circumference of the tire. This makes the tires rotate at different speeds and makes the TPMS "think" there is a low tire.

2. the tire pressures need to be checked with a GAUGE. You could have one or more tires OVER INFLATED and this will also cause the light to come on. I have seen lots of problems with people that keep adding air to the tires, but don't ever use a gauge (they just use the "eyeball gauge"). This does not work with a TPMS. They ALL need to be inflated to the pressure that is on the lable inside the drivers door. They also must all be within 2 Psi of each other.

NOTE: After adjusting tire pressures, it can take up to 30 minutes of straight line driving to get the light to go out. Do not expect it to go out right away, it is not going to happen unless you reset the TPMS with a scan tool.

If you are certain that the problem is not being caused by tire sizes or tire pressures, then the TPMS should be scanned to check for fault codes. There could be several other reasons why the light could keep coming on (bad wheel sensor, communications faults, internal TPMS module failure, etc.)

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