Tag Archives: Thermostat

A bad thermostat can cause your car or truck to overheat or not blow warm air out of the vents. Read our growing list of auto repair questions and answers.


2000 Ford f150 Engine Has No Power

After having my truck worked on for an all of a sudden from running great to next morning it was skipping and like to never took off for spitting and sputtering. No power to pull any kinda grade then get up a little speed to have it shift into overdrive. Then we started running hot. So i got a mechanic “so called” now i think…

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Chevy Blazer Heater, Gauges and 4WD Drive Problems

Chevy Blazer. My heater won’t work but nothing’s leaking can u please help me. Answer: With the heat not working, I’ll have to assume you mean it just blows cold air instead of not blowing at all. If you have no heat, you probably have a restriction somewhere in the system, or a cooling system component not functioning properly. Corrosion and old coolant can clog…

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2002 Chevrolet Malibu Transmission Codes and Blower Speed Problem

I had my 2002 Chevrolet Malibu serviced at non-Gm transmission shop which scanned the computer for codes. They found P0741 & P0730 which are TCC clutch related. I had them test drive the car to make sure it was not an intermittent problem which could be repaired other than the recommended re-flash of the PCM their service department suggested. They said the transmission wasn’t going into overdrive, so they flashed the computer. We…

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1999 Pontiac Grand Prix Vents Hot On Drivers Side- Cold Passenger Side

1999 Pontiac Grand Prix. When I turn my heat on I get heat on the drivers side and A/C cold temperature coming out the passenger side. Same thing happens if I turn on the A/C. This is a common problem with a temperature door actuator motor in the dash. A problem with air temp on the drivers side means the drivers side motor is the…

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My 2001 Chevy Malibu 3.1L Is Overheating

I have a 2001 Chevy Malibu. Bought it new. Very low maintenance car so far. Now my heat will only work if driven down the road or RPM’s raised. Replaced thermostat. No leaks any where. Heater core not clogged. Full of coolant. Does NOT overheat. What could it be? What size engine? How have you determined the heater core is not restricted? 3.1 engine. Flushed…

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Chevrolet Impala Emissions Leak And Brake Noise

Just had spark plugs, plug wires, thermostat, fan assembly and head gaskets replaced on my 2002 Chevy Impala . The check engine light came on and on and Autozone gave a readout of an air leak. He said it was probably something with the gas cap or fuel line. Please what else could it be? Answer: Well, there really is no code for “Air Leak”. By…

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2004 Chevy Impala Temperature Gauge Goes From Half To Full Hot

Hi there. this is a cooling system issue. I just purchased a 2004 Chevrolet Impala basic. There is only water. No coolant in the radiator. The temperature gauge fluctuates from half way mark to the 3/4 mark. However when I stick a calibrated bio-thermometer in the over flow tank the temp only reads 118 F at it`s hottest point after idling for 15 minutes. And…

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2003 Buick Lesabre Misfire and Engine Light

I have a 2003 Buick Lesabre 3.8L, I am getting a code P0300 and P0302 code from Autozone. I have changed out the spark plugs and wires and the 3 coil packs. The car is running a little rough but not dying. It is still getting the same codes? Someone suggested checking the #2 injector, so i did it with a screw driver while running, and…

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1997 Oldsmobile Cutlass Overheats and Blown Engine

Hello. Wow it’s free? Most of these charge money. Yes we are. Well just a few questions…car is a 1997 Oldsmobile Cutlass 3.1L 3100. I have a pro GM mechanic of 20 years working on this thing. I bought car 56000 on it last year with really bad coolant in it, oil was great. Had it flushed and after that seemed overheating but we kept…

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Hyundai Elantra Overheats and Stopped Running

Question: I have a Hyundai Elantra which stopped running. When I had it towed to the Hyundai dealer, they told me that the head gasket was blown. They indicated that the upper and lower radiator hoses had been reversed at the thermostat housing causing air to be trapped at the front of the housing and the coolant temperature sensor does not read trapped air, causing…

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Dodge Van Engine Goes To Hot Mark On Gauge

Engine gets hot. Gauge goes to the hot line. Radiator and top hose not getting hot, but top hose feels under pressure and no thermostat. Answer: What make model and year vehicle is this? There is no thermostat in the engine? 1995 dodge van 360 engine Was the thermostat taken out to try to fix this problem? Yes. OK. With no thermostat and the engine…

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My 2003 Chevrolet Impala Is Over Heating

Hi my name is Jim. I got a 2003 Chevrolet Impala overheating. Already replace the thermostat but still overheating. Protech: You could have a bad cylinder head gasket or leaking intake gaskets causing your overheating problem, or it just could have a large air pocket in the cooling system from when you changed the thermostat. The check engine light is on and I have no…

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1999 Oldsmobile Cutlass Engine Light and Transmission Problems

Hey I have 1999 Oldsmobile Cutlass 3.1 liter vin J motor. When I go to accelerate up a hill the car kicks in out of overdrive(rpms surge between 2500-3000.) Any idea what it could be? ProTech: It sounds like the beginning of a transmission problem if it’s hunting for gears on an incline. I just had transmission replaced. The one in it now has 25000 miles…

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2000 Oldsmobile Intrique Coolant Boiling Over and Gauge Reads Hot

This is a long shot by me and hope that you will help me. I have a 2000 Oldsmobile Intrigue. I got new and have been keeping it up since. You have probably heard of this engine running hot during the winter time ( for those of us that live in cold states) but normal in the summer and mine started a few years ago…

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