TrailBlazer: Engine warning lights

my suv when i drive it i willl hit the gas pedal the rpm's will go up but the car seems as if its idoling like im revving the engine in drive is the best way to describe it and i cant get the car to go over 40mph it seems. autozone checked my check engine lite and they advised that there was a problem with the coolant sensor however would this causethis type of problem. i also just had the battery replaced and the battery is only a few weeks old we checked the connection on the battery an they were not tight but autozone tightened them for me and it is still doing the same thing. any ideas on what the problem could be?

Replies to this message:

mav39 (Aug 02, 2010 8:07 pm)
- gmcustsvc (Aug 03, 2010 8:52 am)

#21 of 27 4 wd abs service lights by dkredmond

Feb 13, 2010 (2:27 pm)

Hi
Yesterday while driving, the following light lit up on my dash cluster.
service 4 wd, abs, brake.
At the same time my fan stopped blowing out air into the cabin,
does anyone know if these are related and just bad luck having multiple problems at the same time.
Thanks

#22 of 27 sevice engine light blinking by kittyluvstiger

Jul 01, 2010 (7:51 pm)

I have a 2004 trailblazer the service engine light starts blinking at 40 mph what does this mean

#23 of 27 ABS, Brake error lights and ac fan not working. by dbunton

Jul 16, 2010 (3:20 pm)

I have a weird one. I have an 04 Trailblazer and when I turn the air on speed 1-4 the fan does not work and my dash board gets both the yellow ABS and red brake lights. If I turn the air on speed 5 the fan does work and the error lights go away. If I turn the air off I do not get any error messages, thus I only get error lights when using air spreeds 1-4. Please advise?

Thanks

Replies to this message:

burdawg (Jul 16, 2010 9:32 pm)

#24 of 27 Re: ABS, Brake error lights and ac fan not working. [dbunton] by burdawg

Jul 16, 2010 (9:32 pm)

Replying to: dbunton (Jul 16, 2010 3:20 pm)

I don't have a wiring diagram, but it could be a problem with the fan speed resistor board. On the highest speed the board is mostly bypassed and the fan is connected to full voltage via a relay. If the board had a short circuit and it's in a circuit with the other warning lights then it could cause a problem like you describe.

#25 of 27 engine warning light by hjhildo

Jul 20, 2010 (12:09 pm)

OMETIMES when i am idling. There is no set pattern. Sometimes it blinks, sometimes it stays on, sometimes it does not go on. What is the problem? Is it electrical?

#26 of 27 Re: Rpm issue and SUV wont accel correctly [heezyjos] by mav39

Aug 02, 2010 (8:07 pm)

Replying to: heezyjos (Oct 26, 2009 5:52 pm)

my tb sounds like a bus when I speed up and the rpm's go above 3,000, it also takes the tb a bit to actually get up to speed. I had it checked a year or so ago when it was doing the same thing and the dealership replaced some idler pulley part and it fixed the problem. However, it looks like the problem is back and I'll have to have it fixed again. Last time I took it to the dealership they acted like they were aware of issues with this part.

Replies to this message:

gmcustsvc (Aug 03, 2010 8:52 am)

#27 of 27 Re: Rpm issue and SUV wont accel correctly [mav39] by gmcustsvc

Aug 03, 2010 (8:52 am)

Replying to: mav39 (Aug 02, 2010 8:07 pm)

Hello Mav_39,
Did you speak to the dealership and tell them the concern is still present? Can you please email me your VIN number? You can get my email by clicking on gmcustsvc. Thank you,
Mariah GM Customer Service

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