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V8-5.3L

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Flashing service engine light
If the check engine light starts flashing it can be for many different reasons and all of them can be serious causing the catalyst to get damaged and exceed emission out put from the engine. You could have a misfire...
Question
No Oil Pressure Sensor light is on.
Those sensors occasionally fail and/or get plugged up. It's quite possible debris got entrained when you performed the repair on the oil pan and debris made its way to the filter screen on the sensor causing a false reading of...
Question
Clicking sound when turning over.
Hi There, It sounds like you may have a faulty starter solenoid or starter relay. If you hear a clicking sound when turning the key, it is likely that your starter solenoid may be faulty. The starter solenoid is located...
Question
2007 suburban.....stalling or cutting back when driving especially on inclines
There are many things that may cause the engine to stall or lose power, however this may be a sign of a clogged catalytic converter. The catalytic converter converts toxic exhaust gases into less harmful pollutants that are suitable to...
Question
Oil pressure reading high
Hi There, If you are referring to the fact that the oil pressure is at 40 psi when the engine is off, this would indicate that the oil pressure sensor is not working properly. The oil pressure should read ~40...
Question
No start
A common cause of no start in the circumstances you describe is an old battery that won't hold a charge. The best thing to do is request a no start diagnostic and the responding certified mechanic will first load test...
Question
A few things I'm not sure are connected.
Smoke on start up is usually an indication of worn valve stem seals, particularly with GM small-block engines. When the seals are worn, engine oil leaks past them into the combustion chambers and burns away. The reason you see smoke...
Question
How many quart does rearmed hold
The rear axle gear oil capacity is 2.75 quarts. If you purchase 3 quarts you will use most of all of the three quarts.
Question
Brake light problem
You mention "right" brake light as functioning, at least momentarily, but nothing about the light on the "left". If the right light functions momentarily, but only after replacing the fuse, there is probably a faulty or intermittent connection in that...
Question
Squeaky Brakes
Hello there, brake squeak is a very common issue with your 2006 GMC Sierra. There are likely causes of brake squeak such as incorrect pad material, item stuck in backing plate, caliper guide pins seized, or worn brake pads. Though...
Question
Oil pressure gague on 0 and check engine light on
Hi There, It sounds like one of two things are happening. Either the motor is in fact low on oil or the oil pressure sending unit is not working properly and may be producing a faulty reading. I would recommend...
Question
Air not flowing out of front vents.
If the blower motor is not turning, the cause is identified during a failed heater diagnostic. Blower motors failures are due to faults in the wiring, fuse, relay, control switch, resistor block, if so equipped, and of course the blower...
Question
Truck sputters at 1500 rpms
In some cases, an OBD-II code like you've described can be triggered by the electrical harness attached to a sensor. So, it's possible that the reason you're having this idle problem is due to the harness being faulty as opposed...
Question
My blower motor stopped working. I got a new one. Not the problem
If the blower motor is new, you'll want to first determine whether power is getting to it when the blower switch is in the on position. If there is no power, then the blower switch and the plug connection on...
Question
wen brass compression or copper compression ? for battery terminal repair 1966 5.7liter?
Hello. The appropriate gauge cable for that vehicle would be a 2 gauge, however a 4 or even 0 gauge could be used. In regards to the terminal I would recommend using a copper terminal, as it is more conductive...
Question
Why do I have a knocking/grinding sound coming from the front left tire area on my 2007 GMC Envoy
Hello. This can be caused by a number of things. If the noise only occurs when going over bumps then it is possible that you have an issue with the strut on the suspension or an issue with the ABS...
Question
I tried to start my truck after a -35 degree night. I got nothing from the starter. The key fob worked once to unlock the car, but
Hello. If all of your issues began after severely cold temperatures, then it may be possible that the issues are temperature or moisture related. It is important to keep in mind that at lower temperatures, especially those as low as...
Question
Low brake pedal with little stopping power
Hello. A brake pedal that sinks to the floor can be caused by a few different issues. If you have already looked at or replaced the aforementioned components then it may be possible that there is an issue with the...
Question
My truck will not start at all!
Hi there. It looks as if you had a lot of work done in a very short period of time. This might have led to a minor mistake that could have prematurely drained your battery. In some cases, the battery...
Question
Why does my oxygen sensor heater stay in not ready mode on my 2002 Cadillac Escalade
Hello. If you have performed the necessary driver cycles and have not lost battery voltage or reset the computer at any time then you either have a problem with the heater circuit of the sensor or the computer is failing....

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