Question about 2003 Chevrolet TrailBlazer

1 Answer

I changed the batery and the spark plugs on my 2003 trailblazer but now when I turn on the ac the rpm needle drops and the truck turns off. What can I do to solve this problem?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Chevrolet Master
  • 1,112 Answers

$4.00 fix Unhook the battery and clean the throttle body with throttle body cleaner, should be nice and shiny. When finished, hook battery back up and drive around for 5 miles or so with all accesories off so the computer can relearn a properly functioning throttle body.
The computer or PCM learned some bad habits with that dirty throttle body, so when you changed the battery, computer thought the TB was clean, and you'll have idle problems with the AC or defrost on.

Important note.....do not use carb cleaner or brake cleaner, will harm sensors, use sensor safe cleaner or one marked for throttle bodies. I just bought a can today for $3.99, I'm over due to clean mine as regular maintenence. We don't have a traditional PCV valve, so our throttle bodies get gunked up faster than others. Should clean once a year or more depending on driving habits.

If you can change our plugs, you can do this....dealer charges around $85-$100

Posted on May 28, 2011

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

Change spark plugs 2003 an recomend type plug


Don't use anything but AC Delco 41-103's TB's love these. You can get them at the dealer, but can get them cheaper from someone like Autozone. Our TB's don't like the normal replacements you find at autoparts stores.

Dec 08, 2010 | 2003 Chevrolet TrailBlazer

2 Answers

Changing spark plugs in 2003 chevy trailblazer


CHANGING SPARK PLUGS IN TRAIL BLAZER. YOU NEED TO REMOVE AIR INTAKE RESONATOR AND IGNITION COILS.YOU NEED LONG 3/8 EXTENSION - SPARK PLUG SOCKET - 3/8 RATCHET WRENCH. NEED SPARK PLUG GAUGE AND A TORQUE WRENCH.YOU CAN GET BY WITH OUT ONE LONG AS YOU DONT OVER TIGHTEN PLUGS AND STRIP OUT ALUMINUM THREADS.

Jun 26, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

The engine dies when the ac/heater switch is turned on .


sounds like eithor the batery is on it's way or the alternator can no longer hold the load
have mechanic do a load test on battery and check alt

Jan 10, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

Service question


Tools Required; J43094. Removal Procedure.turn Off the ignition swicht..Remove the ignition coil. Use theJ43094 in order to remove spark plug. Spark Plug type AC-41-965

Aug 30, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

Engine almost stalling when ac is turned on


you may have a faulyt IAC sensor not idling up enging when a/c is on

Jul 22, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

A/c rpm problem


I had the same the same problem last year took it to a AC shop everthing was fine. He said take it to the Dealership. I took it, come to find out the throttle body needed to be cleaned. It cost around $100.00. Hope this helps.

Apr 27, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

Engine rpm changes wihen fan switch turn on


replace the control unit for the heat, sounds like it is causing a cross feed.

Oct 12, 2008 | 2004 Chevrolet TrailBlazer

Not finding what you are looking for?
2003 Chevrolet TrailBlazer Logo

144 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75117 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7772 Answers

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

Answer questions

Manuals & User Guides

Loading...