Question about 2004 Chevrolet TrailBlazer

1 Answer

Truck runs fine until you turn on a/c or heater. then idle hunts(goes up and down) will sometimes die

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 270 Answers

Hi: Its sounds almost like you are Low on R-34 Coolant and being low makes your Compresor to your A/C Cycle Al The Time Its Trying to keep up with the Rest of the A/C System,Causing it also sometimes it will die.You Have a Pressure Sensor that Tells your system when it needs to Run your Compressor to Keep your system running and Cooling Properly.Check or Have your R-34 Frefrigerant Check See if you Need to Recharge Your System.You might whatto let a Garage /Shop do this so they can Vacum your System Down 1st.This Clears all the Air, Refrigerant and Most Commpressor Oil. They will or Should Recharge it with new refrigerant ,Oil, And Bring Your System Back up To Specs.And as Far as it Dying on you off and On. Possibly is really low on R-34 or your Compressor CLUTH is Going Out And Trying to Lock Up. Hope this Helps you Solve your Problem,Let Me Know Please by Voting my Advice i Have Given Your, Thanks Much The WYOCWBOY

Posted on May 29, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 1988 GMC 1500 with a 305 the problem is that it wont idle I found that if I pull the vacum line off the MAP sensor it is fine for 30 seconds then dies I got a new map sensor and nothing chan


Change the PCP valve and run the heater. This should take care of it. You only have to run the heater one time as this is controlled by the vacuum system. This will cause your motor to run proper.

Apr 09, 2012 | Cars & Trucks

1 Answer

Upon starting 99 ram 1500 it starts to idle down and almost die but once i give it gas its fine for a while what to do?


Have someone check the idle air control valve. When you are idling the intake air takes a different path into the motor than it does when you depress the accelerator. A hunting / erratic idle is a good indicator of a faulty IAC. Sometimes you can clean them but best to replace.

Dec 07, 2010 | 1999 Dodge Ram

1 Answer

180k miles, new plugs/wires/battery/oil-filter change, idles at 500 just fine until turn on heater. With heater on it goes below 500 and will sometimes die at stop light or when pulling into parking spot.


You have a vacuum leak inside your vehicle in the ducting system. If it only does it when you go to heat i would look at the vacuum actuator that controls your heater valve and the vacuum hoses connected to it.

Nov 09, 2010 | Ford Explorer Cars & Trucks

1 Answer

1990 full size blazer starts fine idles then dies


sounds real easy either a bad idle air control solenoid or more likley a blown throttle body gasket. to test fro a blown gasket, with engine running and cool spray carb cleaner or brake cleaner around base of tb were it bolts to intake. when it hits the bad area, should idle down and be normal for a second or 2. iac is possible,try this first since its so common and let me know

Aug 26, 2009 | 1990 Chevrolet S-10 Blazer

Not finding what you are looking for?
2004 Chevrolet TrailBlazer Logo

115 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8210 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...