Question about 2007 Chevrolet Tahoe
Started gone on once in a while, now it's on every time I start the truck.
Check the front gearbox for gear oil. Sometimes it will develop a leak, and when it does, the low gear oil will trip the warning.
Posted on May 23, 2014
Testimonial: "James Marton I found the problem,the left front caliper was dragging causing the check 4 wheel drive message to a come on. Replaced caliper and no more light.. Jun 23, 2014"
In 05 gm decided to put sensors inside the transfer case , these monitor things like oil level in transfer case , gear placement (not asked for 4wd but in there anyway) also i do believe they extended this monitor to the front axle as well all fluids on all three places will need be ck'ed also ck to see that front axle is not "locked in" as these had autolocking hubs and sometimes they don't autounlock the monitor sees this and gives you a fault, try turning tight circles with someone watching front wheels , they will see Tire Jump/drag a bit if hub is not unlocked (2wd mode)
Posted on May 14, 2014
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Posted on Jan 02, 2017
SOURCE: my truck is stuck in 4 lo
pull atc 25 amp fuse in underhood fuse center and 10 amp 4wd fuse inside cars fuse box,your problem is in control box behind kick panel on pass. side ,corrosion build up,
Posted on Mar 06, 2009
Pull the kick panel on the passenger side. there is a small box mounted there that is the computer that controls the actuator for the 4wd system. this is notorious for problems due in fact that the connector likes to pull out and away from the module. I had the same problem and the solution is simple.. take a long zip tie and get it between a few of the wires and around the module. tie it in and have a nice day.. it wont come off or try to pop out anymore and you should have no issues getting into 2wd, 4wd h, 4wd L.
Posted on Jun 21, 2009
Sounds like a bent fork in the transfer case. It is a common problem with your truck. The transfer case is a np236. If it just recently started doing this, the rebuild will cost around $800. If the 4wd has been acting up for a while, the planetary will probably need changed, which is another $200.
Posted on Jun 28, 2009
Check the fuel pressure, bad fuel pump or sock on the fuel pump and fuel filter check spark plugs and check distributor cap, a fuel pump is $273.00 or a bad injector $110.99 or BWD Fuel Vapor Pressure Sensor for $35.99 any of these parts could cause the problem, so without doing a fuel pressure test it is a guess, if the vapor switch is bad it could cause a long crank time if the fuel pump is bad it has a check valve in the fuel pump, if the check valve goes bad the pump can't maintain fuel pressure so on start up the fuel has to pump from the tank all the way up to the fuel rail, if the injectors is bad it could leak after engine shut down and cause you to lose fuel rail pressure. Also the fuel vapor sensor could be stuck open and could cause the problem, all need to be tested, you can rent the fuel pressure tester from AutoZone or advance auto or Shucks they return your money when you bring the tool back as long as you buy the parts to repair it from them. That would be the first thing I would check fuel pump pressure and if you replace the pump then change the fuel sock as well. That model was not meant to burn ethanol and can kill the fuel sock the fuel pump and filter.
Posted on Jul 04, 2009
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