Common questions

Why does my car rev up and down at idle?

Why does my car rev up and down at idle? Over time the throttle body valve can become dirty which can allow the throttle body valve to stick or not open/close all the way which can cause your car’s engine to rev erratically and can cause the engine idle to bounce up and down. What are the symptoms of a rough idle engine? It is possible for you to test the EGR valve at home, using a hand held vacuum pump. Other symptoms: An EGR stuck open may include a rough idle, rough performance at low engine speeds, stalling at...
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How do you reset the low def light on a Duramax?

How do you reset the low def light on a Duramax? To reset the system, press and hold the thumbwheel for two seconds while Fuel Filter Life Remaining is displayed on the DIC. Why does my 2015 Duramax Def light not reset? 2015 Duramax DEF light won’t reset after adding fluid and speed has been reduced to 55 mph. It’s under the rpm on left 2015 Duramax DEF light won’t reset after adding fluid and… When does a GMC diesel warning light come on? In the event of a refill, the scan tool may show that fluid has been added,...
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What is the ignition switch fuse on a Chevy Suburban?

What is the ignition switch fuse on a Chevy Suburban? IGN A 40A Ignition Switch RUN. START. RUN/START/ACCY LBEC 1 50A FLASH Fuse, TBC 2A Fuse. TBC 2B Fuse. TBC 2C Fuse. LT DOORS Fuse LR PARK 10A Exterior Lamps-Left Rear. Where is the light switch located on a Chevy truck? Where is this switch located? Normally on other cars it's a cheap little button that is located on the inside of the door jam, but I see nothing on my truck. Is the switch possibly in the latch itself? Where are the power outlets on a Chevy Suburban? LR...
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What causes a speedometer to not work properly?

What causes a speedometer to not work properly? A speedometer is an instrument which provides the driver with instantaneous readings of speed. But sometimes, the speedometer may not work properly. Common problems include, a faulty sensor, bad wiring, or dial malfunctions. Troubleshooting speedometer problems mostly calls for a replacement of the speed sensor or cable, depending upon the vehicle. Do you need to replace the speedometer dial? Not every speedometer related problem needs a replacement job. It depends on the cause. In case the dial is the problem, you can easily replace the dial alone. Problems with the inbuilt computer...
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What kind of oil does a 2005 Avalanche take?

What kind of oil does a 2005 Avalanche take? Engine OilViscosity:10W-30 (Above -18) 5W-30 (All TEMPS) SAE 5W-30 is preferred.Capacity:6 quarts. . . (with filter)After refill check oil level.Torque:18 ft/lbs (Oil Drain Plug) What happens if your Chevy Avalanche has low oil pressure? One of the most serious issues that can happen to your Chevy Avalanche ‘s engine is if it ends up with low oil pressure. Low oil pressure will cause the engine to seize up. When the oil pressure light on, it should be assumed that the engine locking up is imminent. We advise not running the engine...
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Are there any problems with the 2011 Chevy Camaro?

Are there any problems with the 2011 Chevy Camaro? Chevy camaro buyer experience. The 2011 Chevy camaro has many recalls I had to get done it was free however the key switch and the seat belt both had a recall. I Haven't had any major problems for the to be as old as it is. The mileage could be better. What was the top of the line Camaro in 1969? The 430 horsepower ZL1 427 and 425 horsepower 427 (special order COPO) Camaros were the hottest tickets in the 1969 (the 425 horsepower 427 was just slightly slower than the...
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What happens if you disconnected the EVAP canister?

What happens if you disconnected the EVAP canister? On cars that I remove all the stock stuff and put a carbed 350 in without any emission stuff its common that people just put a little breather type filter on the end of that evap line out of the gas tank, either up front or on the frame rail or anywhere it wont get water in it. Plugging it would be bad. You want to let it breathe. Where does the vent line go on an EVAP? You can eliminate the canister and associated hardware, but you'll still need the vent...
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Is the 2012 Chevy Equinox a good car?

Is the 2012 Chevy Equinox a good car? The 2012 Chevrolet Equinox has structural protection to give you peace of mind; but outward visibility can be a serious issue. The Chevrolet Equinox has a great safety record--and a pretty impressive roster of safety features. When did the Chevy Equinox come out in 2011? Editor’s note: This review was written in August 2011 about the 2011 Chevrolet Equinox. Little of substance has changed with this year’s model. To see what’s new for 2012, click here, or check out a side-by-side comparison of the two model years. What kind of gas mileage...
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Can a lack of spark timing cause an engine to run rough?

Can a lack of spark timing cause an engine to run rough? Lack of proper spark timing can cause a different problem: one or more of the cylinders may misfire. That is to say combustion may be disrupted. You will feel, and maybe hear, this as a brief stutter in the engine. You might feel that the engine runs rough or vibrates at idle, say, when you're sitting at a red light. What causes the Check Engine light to come on? A failing or failed crankshaft position sensor may cause the check engine light on your dashboard to come on....
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Why does the water pump close the thermostat?

Why does the water pump close the thermostat? The opening allows warmer coolant in the engine to flow into the radiator. In turn, the water pump pushes lower-temperature coolant from the radiator into the engine. When the lower-temperature coolant reaches the thermostat the warmer fluid begins to cool. As a result, closing the thermostat. Why does the thermostat open when the engine is running? While the engine is running the coolant temperature slowly rises. As a result, making the thermostat begin to open. The opening allows warmer coolant in the engine to flow into the radiator. In turn, the water...