Question about 2002 Chevrolet TrailBlazer

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How much does a tune up for a 2004 trailblazer?

Car is running rough and it has not had a tune up over 8 years.

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1 Answer

Why is it running real rough in gear and at idle?


Could be EGR dirty or stuck; tune up items; IAC dirty or failing; vacuum leak.

Apr 13, 2016 | 2004 Lincoln Aviator

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How often do you tune up a 2004 accent?


Now a days 100,000 is a good number, however,if the car is running and performing well, I should recommend you leave it alone.
The car will tell you when it is ready for tune-up by bad gas mileage, running rough , or missing on acceleration.
I drive cars that have over 200,000 miles on them, and have not found the need for a tune up on any of my cars ( I maintain about 7 cars for friends and family) in about 10 years.
God bless your efforts.

Sep 04, 2015 | Cars & Trucks

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I have a 2004 chevy trailblazer with 4.3 v6,and it started to run rough like its missing. how do i figure out if its the injectors or the coil pack and wich one


Sounds like a bad wire, or at best a bad connection. Verify all of the conncetions, at both ends. Make sure you don't take more than one wire off at a time. If you connect the wrong wire to the wrong plug the car will run like a junk heap. A bad coil usually means no spark.

Apr 28, 2014 | 2004 Chevrolet TrailBlazer

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Hotmail.com


you need a tune up, plugs, wires, fuel filter, air filter, pcv valvve,etc..

Apr 27, 2014 | 2007 Chevrolet Trailblazer 4.2

1 Answer

My Chevy 2500, 2001 runs rough when it cold outside


It can be issue with low fuel pressure,the fuel pump is getting old both needs to be checked.Also get the IAC valve checked.
Go through the related help links with similar problem,it may help:---
Click the links below:---
Engine Idles Rough and Dies? http://whatisbyme.blogspot.in/2012/05/1994-lexus-es300-engine-idles-rough-and.html

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van idles rough? http://howtobyme.blogspot.in/2012/01/2004-ford-freestar-van-idles-rough.html

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runs lean and idles rough? http://technoanswers.blogspot.in/2012/02/ford-runs-lean-and-idles-rough.html

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Car still runs Rough after tune up?

http://howtobyme.blogspot.com/2011/12/car-still-runs-rough-after-tune-up.html

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2006 kia rio runs rough http://technoanswers.blogspot.com/2012/10/2006-kia-rio-runs-rough.html

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Idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed? http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html

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Rough idle, staling and Erratic shifting? http://technoanswers.blogspot.in/2012/03/rough-idlestaling-and-erratic-shifting.html

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These details will help.
Thanks.

Nov 06, 2012 | Cars & Trucks

2 Answers

I have a 2004 chvrolet trailblazer. Since I got it when at idol it stalls. I brought it numerous times to the dealership for this. They said it was the idol. About a year ago my orange check engaine light...


Was it the hose to the throttle body that you're talking about? Or another thing that would cause it, would be the little tiny hose on the right hand side of the plastic resnonator, this goes to your fuel pressure regulator. AND the larger size hose on the bottom left front which would all cause it to run rough also. All these things would cause it to run rough and you're not the first to forget to hook those back up. Is the engine still running hot? The guage means nothing, need to have it looked at by a scanner to get true accuracy. Should be solid at 210 always.

A couple of things.....while the thermostat was replaced, did they replace the coolant temperature sensor right above the thermostat? This could cause mis readings if it's bad, mine is bad right now so I need to replace mine.

Also, when it would stall, did you have the A/C or defroster on when it did this? If so, it's a very common problem, need to clean the throttle body to get rid of this problem. If you have any more problems or anything with this vehicle, let me know, you got the right guy for Trailblazers.

Jun 01, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

I got a 2004 grand am v6 i replaced the mass air flow sencor and still runs rough


WELL HOPEFULLY THE CAR WAS CHECK IN THE RIGHT MANNER. THERE ARE MANY REASON THE CAR WILL RUN ROUGH. VACUUM LEAKS, FAIL IGNITION SYSTEM.(TUNE-UPS). BAD O2 SENSORS. OR CARBON BUILD UP ETC. ELECTRICAL SHORTS.HAVE IT CHECK BY SOMEONE WHO IS QUALIFED

Sep 23, 2010 | 1998 Pontiac Grand Am

2 Answers

2002 chevy trailblazer has rough idle


it could be an o2 sensor. it could also just need a tune up

Mar 15, 2009 | 2002 Chevrolet TrailBlazer

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