Top 20 2004 Chevrolet TrailBlazer - Page 5 Questions & Answers

Has to do with the timing in the monitoring period, Bosch isn't quite within the specs for our vehicle. Hopefully you used a different brand 02 sensor? Other problems could be low fuel pressure, faulty injectors or an intake leak. Check your intake bolts, our intake is plastic and the bolts DO come loose often. Re-tighten, erase the code and see if that works.

First I would check the PowerTrain Control Module for any thrown diagnostic troubleshoot codes by using a code reader. I am unsure if there is a separate transmission computer module for your vehicle. If there is, a code reader will be necessary. I will assume that the "check engine light" or MIL did not illuminate or the 4wd or 2wd light flash since you did not mention it. If the car can move forward and backward in 4wd, then it's not the transmission itself since power is transferred through the output shaft of the transmission to the transfer case. I would think that 4-wheel drive mode is not fully disengaging- Check the vacuum hoses for damage, crimps, or leaks Check and test the vacuum actuator check and test the transfer case switch check the vacuum actuator cable for damage or defect check and test the encoder motor actuator on the transfer case Buy a repair book or shop manual specific to the year, make, and model of the car you are having problems with that offers descriptive troubleshoot and repair procedures with illustrations. You can purchase them as soft or hardcover books or electronic downloads. Here are a few publishers, Chilton, Haynes, Motors, etc. Do an online search or go to your local auto parts store. Otherwise, if you are not savvy in automotive diagnostic & repair, I would highly recommend flat-bedding the vehicle to a reputable transmission repair shop that has ASE certified transmission technicians. The reason you need to place your vehicle on a flat-bed car carrier - is to avoid serious damage to the transmission.

Shane, the TPS is located on the throttle body and cannot be removed from it. Must buy the whole throttle body which includes the TPS.

Go to auto zone to check for codes it is free.

Did you let the vehicle sit for 30 min. before testing ? Modules need to time out (go to sleep - power down etc.. How are you testing ? Have a ammeter inline with battery negative cable and negative battery post . Have any doors open ( door switch closed ) Key out of ignition ? How much current ? 50 milliamps max !

with an engine upside down and running, the oil pump runs dry the bearings are running with out oil or lubrication with the engine shut off the oil will settle in the pistons and will leak past the rings int the combustion chambers, into the rocker covers and into the air inlets and manifold the coolant will be contained as the system is pressurized and cannot get anywhere it is not supposed to get to transmission /diff oil may have leaked out of the breather holes but otherwise will be contained should you purchase the vehicle , it will be necessary to remove the sump and check the bearings for damage, replace the oil pump. Remove the plugs and turn the engine by hand over to push any oil out of the combustion chambers with the vehicle sitting right way up any oil will run back to the sump except that which is in the air intake and manifold Basically it should be in a recoverable state,if the engine was shut down quickly enough check the crankcase around the engine mounts for cracks as the engine weighs a lot and the throwing around can stress where the mounts are

Need more information. Which warning light is flashing?

Torch converter? They start making noise before they fail to work. But could be a list of things going bad
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Shut off switch for what ? Fuel pump ? This vehicle does not have a fuel shut off switch , if that's the switch your talking about !

I would change the multifunction switch.

? WHAT DIAGNOSTICS PROCEDURES HAVE YOU DONE TO THIS POINT. WITH A QUESTION LIKE THAT YOUR GOING TO GET AN ANSWER LIKE.... PIECE CALLED THE TRANSMISSION

bad wire may be brook just a little

the Chevy trailblazer does not have a cabin filter I checked at the dealership

you have a hole or air leak in the big rubber cruise control bladder. Duct tape or electrical tape should fix it.

Tony, our TB's only have 3 bulbs, 1 brake, 1 running, 1 backup. If you happened to be playing with NEW LED bulbs (from local retail location) for the brakes, guaranteed you blew the fuse under the rear seat. It takes a special CK socket for the brakes that no one carry's. If you're only dealing with normal incondecent bulbs, I'd still check the fuse under the rear passenger seat.

The round metal piece needs to be glued to the windshield. Specific glue is sold at any autoparts store. Once glued in place, the mirror slides onto it.

Have you had the vehicle checked for DTC'S - diagnostic trouble codes ? I would start there first . Battery , charging system all good ? What computer , the ABS has a control module all to it self . The Air con has a relay in the under hood fuse box controlled by the PCM / engine computer . If there is a problem with ABS , The EBCM - electronic brake control module will turn on ABS and the red brake light . A low voltage condition could cause this problem , but I would expect more of the lights to be lit on the dash . Including the check engine light , battery light . This are not connected , Power or ground wise . Have the vehicle checked for codes , that should be the first place to start any diagnostic's always !

The BCM - body control module controls those lights ! There are two fuse's in the rear fuse box that supply B+ voltage to the BCM for interior light's. TBC 3 an TBC 4. Fuse # 4 an #40 both are 10amp fuse's . Fuse Block - Rear Beneath the left rear seat !

If it's the inline engine should be second sensor back on the exhaust