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Chevrolet Trailblazer Questions

Get answers to questions about your Chevrolet Trailblazer at RepairPal. Find solutions, diagnose problems and get back on the road.

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Need help my 2003 trailblazer tries to die when I turn the A/C on anybody have a clue what could be wrong. My husband and Charlie are stumped they replaced plugs and drained gas tank found water in my gas in a quart jar 1 inch on top was gas the rest water I am goin to contact Shell station on that I am mad I paid 3.75 a gallon for water. Plus Bobby replaced a cylinder. 70 dollars later and it still not running right. Any help welcome.

I replaced the coolant temp sensor. I am still getting a PO128 code. I tested the sensor and it tests good. The gauge reads 200. What else could be causing the code?

I've changed the coolant temp sensor 3 times. What else could be the problem?

I have 2 lights that are coming on they look like the traction control symbol but one is in a triangle and the other has a wrench beside it

what do I check next?

It stuck on 20* when it's 50* outside, any help would be appreciated.This problem started yesterday.Auto Temp control 4.2 L.

Thank You

Then it pops on also I believe the code means low voltage to the sensor. Has 56,000 miles does it just need a new MAP sensor? Or is the connection bad.When light comes on I do not notice any difference,except mileage could be better. Which if I understand right a bad MAP sensor will cause poor mileage.

what does code po269 mean

Code reader says MAP low voltage. Wheres MAP located on 2007 Trailblazer 4.2 L engine. I reset code might drive few hundred miles before comes again same code P0107.
Any one have a clue whats going on? Mileage 55,063.

how do i check the transfer case module

going down the road the rpm gauge go up and down motor runs rough. if the eninge stays below 2000 rmp works fine, I'm thinking it might be the cam or crank senor. it has 178000. am i in the wright area or may it be something elso.

just bought vehicle. only buttons 1, 2 are illuminating at dark, along with only one side of the temperature slide for vents. Nothing in manual about illumination. Hard to see them at night.

I was told thay my front wheelbearing needed replaced and now it snowed I tried my fourwheel drive and the noise was worse and I dont think it kicked in to fourwheel drive is that possible

We have a 2005 Chevy Trailblazer that has recently been having an intermittent starting issue. We have replaced the battery, ignition switch, starter relay and had the starter tested - it's good. So we are not sure what to do. The car may start for several days and then you go to start it and all the lights come on and the accessories work, but it won't start. After lots of tries it may start and it may not. We would appreciate any help and advice.

Thank you!!!

When Heat turned on in floor or defrost mode, loud knocking from under center of dash. Vent mode is quiet. When I press the re-circ button, it flashes for a second or two, but never turns on... Would this be an accuator? what would I be looking at to fix or have fixed? THANKS!!!

Those are the codes on the car I need some help please.
Thank you

the tube for the air filter box came loose and got wedged to where it was being chewed up by the fan.

No air flow from front vents plenty of air flow in rear vents.Thanks Jeff

Well i bought this truck for my son and from the first day we had it was problems. First it was a code for air injection pump, changed it with air solenoid valve. Next got a code for Temp. too low, changed new temp-stat.
Now, code of P0172. the truck is smelling like the fuel is too rich and it also lack power when accelerating. The internet says it oxygen sensor or clogged catalytic converter. Please help. P.S. also changed air filter and fuel filter. If i dont fix this truck soon my wife will punish me, she's on my tail bout this lemon i bought cause we always bought Toyotas.

The service engine light came on had it scanned said it was the converter, now lose of power engine light comes on when i first start the car

We thought (and were told by one mechanic) that the heater core needeed replaced. that wascovered under warranty. The dealer said it wss the heater contrl valve that is leaking. Would that cause the overwhelming smell of antifreeze in the car? Also how hard Is it to replace as this part is NOT covered under warranty.

CLICKING SOUND AND DOES NOT WORK WITH THE REMOTE AND THE KEY LESS ENTERY DOES NOT WORK.

I got a new battery and checked alternator

it happens all the time.

lights work on dash switch but does not ingage in to four wheel dr.

2006 CHEVROLET TRAILBLAIZER: UPON COLD START IGNITION, THERE IS A "VIBRATION" SOUND COMING FROM THE RIGHT ENGINE AREA. COLD RUNNING, WHEN SHIFTS INTO REVERSE, THE NOISE SOUNDS AGAIN. COLD RUNNING, WHEN MOVING THE NOISE SOUNDS AGAIN WHEN SHIFTING INTO 2ND, BUT LOUDER WHEN SHIFTING INTO 3RD. AFTER THE CYCLE GOES THROUGH ONE TIME, THE NOISE IS NOT HEARD AGAIN. IF THE TEMPERATURE OUTSIDE IS BELOW 60 DEGREES, THE NOISE IS HEARD UPON START UP, REVERSE, AND DRIVING SHIFTING INTO 2ND & 3RD GEARS. IF THE TEMPERATURE IS ABOVE 60 DEGREES I DO NOT HEAR THIS VIBRATION NOISE. I WARM UP THE VEHICLE BEFORE MOVING, SO I DON'T HEAR THIS NOISE, BUT SOMETIMES THE "WARM UP" DOESN'T MATTER IF THE TEMP IS BELOW 60 DEGREES. PLEASE HELP

the first time I try to turn my car on but fail my brother push the gas pedal and turn on the engine start working but after that my car start smelling like burning, when I start driving smell antifreeze I thought there was a leak somewhere but I did not find anything, the internal leaking could be inside the motor?

No service 4 wd
indicator comes on ,computer reflashed because of engine light and loss of engine power light coming on . Will occasionally go into 4 hi and AWD .lights do not come on in AWD or 4 Hi when switch is changed only on occasion seems like when it feels like changing .

already replaced one

My mechanic says I need a timing chain.