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V8-6.6L Turbo Diesel

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Why does my vehicle go into reduce engine power mode. 2008 Chevrolet Silverado
Hello. I would need to know what code you are getting to know what needs to be done to take care of this. If you are getting a MAF code then the sensor may be failing, but that will not...
Question
P0483, with engine overheating.
Hello. P0483 is the trouble code a "Cooling Fan Rationality Check Malfunction. If the computer detects a discrepancy between the cooling fan's commanded state of operation, versus the actual state of the circuit, it will set off this code to...
Question
Q: No crank no start.
Hi there. Check the battery cables and make sure that they are tight and clean. Check the cables that attach to the starter and make sure that they are all tight and clean. The starter remote wire could have an...
Question
Makes a popping noice and blows out white smoke real bad. I don't know what the issue is. Any ideas?
Hi there. It seems that there could be a head gasket or intake manifold gasket is leaking causing coolant to enter the combustion chamber make the white smoke and the engine to have a popping noise. Also, since you have...
Question
My 2004 Chevy Silverado is having cooling system problems
Hi there: On a 2004 Silverado 6.6L Diesel there is a heater hose bypass valve that opens when the heater is activated. Sometimes this component can become stuck due to corrosion inside the coolant lines or a sensor that has...
Question
How long will it take to remove and replace the engine and transmission.
Hi Chuck. That really depends on your tools, equipment and experience. Some professional mechanics with engine lifts and air tools can remove the accessories, motor and transmission mounts in less than two hours. The best advice I can offer is...
Question
Leaking coolant - 2004 Chevrolet Silverado
Hi there. Depending on what edition of the Silverado you have the leaking coolant may be coming from the radiator overflow reservoir. It might also be a heater bypass tube that's damaged. The reservoir is used for overflow, as coolant...
Question
My system says there is water in the fuel
Hi. Yes, water in the fuel will cause knocking. I would advise doing a fuel system maintenance - drain the fuel system all the way to the tank, including the tank. This will get rid of any water and contaminated...
Question
Enging not reaching operating temperature and heater not getting hot
You need to have the cooling system fan clutch checked to see if it is keeping the fan running high speed even when cold. With engine idling with the engine cold you should have very low air flow from the...
Question
4x4 won't engage and push button switch lights up intermittently.
Hi there. Check the electrical wiring to the transfer case shifter motor and see if there is a voltage present when pushing on the 4WD button. If there is a voltage present, then I recommend replacing the servo motor on...
Question
Truck isn't engaging into 4 Hi, but will go into 4 Low.
Hi there. Sounds like the shifter module motor or shifter rail is not working properly. Check the wiring on the shifter module motor on the transfer case and see if the wires are split or damaged. If the wires are...
Question
Which diesel is most superior? 7.3 5.9 6.6
The 5.9L diesel is a straight six engine. The 6.6L diesel and the 7.3L diesel are both V8 engines. If find that there are more maintenance when it comes to the V-configured engines to the straight six engines. I have...
Question
Codes p0708 and p0706 show up i can drive and shift fine one trip the next trip it will act up.
Hi there. The P0708 trouble code means that the Engine Control Module (ECM) has detected a malfunction with the transmission range sensor. A mechanic would begin the diagnosis of the P0708 trouble code by finding the manufacturer’s suggested procedure for...
Question
2006 GMC 2500 HD P0101 Mass ari flow sensor (MAF) performance
The powertrain control module (PCM) sends the mass air flow (MAF) sensor a 12-volt reference signal. Incoming air flows over a wire inside the MAF, which allows it to measure intake air temperature, and therefore air density. The MAF then...
Question
Bubbles and pressure in the overflow tank
If the coolant level was low due to a leak, such leaks can be found during a leak diagnostic with simple pressure testing. If the cooling system doesn't maintain pressure, and no external leak is visible, coolant could be leaking...
Question
Q: fuel filter
Hello. We will be happy to assist you. There are are a few things that I recommend a technician inspect. Fuel should have been inside the filter once you removed it. A test must be done to see if the...
Question
My chimes only come on after I start my engine
Hi there. Alert chimes are triggered by sensors located on doors, seat belts and other devices that alert a driver that something is either open or not properly secured. To determine why they are not working correctly, have a mechanic...
Question
trans hot idle engine comes on when i start the truck
Hi there. Understanding what causes the transmission hot idle warning light is critical to diagnosing your problem. The Transmission Hot – Idle Engine message can be displayed when the transmission fluid is too hot, which prevents the transmission from cooling...
Question
The remote starter quite working on my 2015 3500 LTZ Silverado Duramax. There is no check engine light.
The remote start may not activate if the systems show there is not a correct condition for the remote start to activate. If there is a problem in the body control module security system that may be a problem in...
Question
Truck will not start or crank with the key bit all lights are on, 2008 6.6L gmc 2500
It sounds like what you are describing may be related to a faulty starter relay or some faulty wiring that may not be producing a proper connection to the starter. The starter relay directs power from the battery to the...

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