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Four-wheel drive light.
On an electronic four wheel drive system such as this one there are a few different things that may trigger a four wheel drive light. A faulty solenoid or motor on the transfer case, an inoperative front differential actuator, or...
Traction Control Fail light on
While this code can be a illuminated for a number of reasons, you are correct that it has to do with servicing the stabilizer system. This light is actually a common one, and the repairs I have seen involve reprogramming...
Window came off track
Hi. If the window came off of the track then the door panel would need to come off to see why that occurred. Most of the time the window comes off because the regulator is failing and the window bound...
Moonroof drain plugs clogged
Hello. This problem is common to Hummer H3s. It is an involved fix, and most of the incidences are related to the front drain tubes, as the vehicle sits at a slight rake to the front. Access to these is...
Vehicle made noise and overheated
Hello. Generally, that noise could be from several issues related to losing coolant. First, visually inspect the engine compartment for external damage to the radiator; the engine fan may have been hitting it. You can fill up the coolant to...
reduced power and a question with the throttle body.
You got a loss of power due to a fault with the system closing the throttle as a built in safety factor. The reduced power indicator is telling you that it went in to a failure mode and caused the...
Truck overheating
Check to see if the cooling fan clutch is fully engaging when the engine is heating up. You can test this by putting a tissue in front of the radiator or condenser to see if the fan flow is strong...
Temp. Gauge rises when I'm stopped or idling and when I run the AC but not when I'm moving.
If you are getting overheating only at lower engine speeds with no obvious reasons, then you will need to check if there is good flow through the radiator using a laser temperature sensor. By doing this you will be able...
Sunroof leaking
If the dealership cannot open the sunroof, then the entire sunroof assembly may be in need of replacement. With this vehicle no longer in production, the parts may not be available. The entire interior roof panel should be removed to...
I was just told my rear differential pinion seal was leaking when I got an oil change.
There is a seal that sits in between the two halves of your differential housing which keeps the oil inside of this housing from leaking. The oil inside the differential housing keeps the pinion gears lubricated. It depends on how...
MAP sensor
Hello. MAP stands for manifold absolute pressure. So the answer to your question would be that it is the manifold absolute pressure sensor that there is something wrong with. The map sensor reads the pressure in the manifold and sends...
Heater/air won't turn on
Try checking the relay. Sometimes when the relay is not getting a good connection this can happen. I would also check all of the fuses. Sometimes when they have too heavy of a load they will blow which will in...
Every 3-4 months, my car won't start. It does turn over though.
If your battery is weak or has bad connections to the battery, then you may have problems starting the vehicle intermittently. This is due to low voltage to the starter which is taking all the power, while the electronic ignition...
I need to know the diagnostic procedure for dtc p0717. Want to test wires before taking out transmission
If the sensor only has two wires, it is a reluctant AC sensor. If the sensor has three wires then it is a hall effect DC sensor. A two wire sensor will produce a sine wave signal: '()(-)()(-)(_)' or steady...
I like this truck but wonder what you think about the Chevy Colorado
Hello. Consumer reports can vary greatly across websites and critics. If the truck is in good condition, and was well maintained then it will likely last you a long time, assuming you keep up the maintenance. I would recommend a...
I have a Chevy Colorado. DTC P0717. No input from trans input speed sensor. Need to know the circuit test procedure and sensor rep
Hello, I have provided a link below that will help you with your issue, if you click here
Car turns over but won't start
Hi, thanks for writing in. If, during a "no start" session, waiting slightly more than 10 minutes allows you to successfully start your H3, the problem is not with the fuel system. A failure of the ignition switch (an internal...
Engine Oil
It is a bit unclear what the question is but assuming you are looking for an oil recommendation, it would depend on the driving habits and conditions the truck is subjected to. Since it has been 28k miles since the...
Part fell from above brake/gas pedals.
The part is not a Chevrolet part but an aftermarket alarm system that was installed on the truck. Most of the time the part is just stuffed up inside the dash or wire tied to anything underneath the dash to...

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