Question about 2003 Chevrolet TrailBlazer

Open Question

2003 trailbazer is idling high and reving up and down

Its reving up when driving and when stopped

Posted by on

  • Gerrit Huizing Feb 22, 2012

    and for some reason the brakes get soft when this high iding is taking place

  • rick
    rick Feb 22, 2012

    your power brakes work on vaccum from your engine so when you are running at a high idle your have more vaccum to your power booster so the brakes could feel a little softer

×

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Why does my 1992 Ford Explorer idle too fast?


Idle adjustment procedure - Ford Explorer and Ranger Forums ...

www.explorerforum.com > ... > Under the Hood
Mar 25, 2015 - 19 posts - ‎11 authors Idle adjustment procedure Under the Hood. ... Below are the stock idle speeds (RPM) for my 2000 SOHC V6 with strategy CDE4. ..... when you apply the throttle or it could be too much base timing causing a huge misfire. High Idle Blues 1994 4.0
19 posts
Dec 8, 2009
HIGH IDLE in Park!!!
7 posts
Nov 28, 2003
High idle in park 1,500rpm and 900rpm stopped in drive ...
10 posts
Nov 12, 2003
High Idle Problem .. 95, 4.0L, OHV
19 posts
Apr 30, 2003
More results from www.explorerforum.com

Nov 02, 2015 | Ford Cars & Trucks

1 Answer

Eng lack power in drive, wants to bog down when accelerating, but when idling eng reves by itself to high rpms. Vehicle is a kia


CHECK YOUR ENGINE VACUUM AT IDLE IT MUST BE AT LEAST 19 INCHES. IF NOT YOU HAVE A CATALYTIC CONVERTER ISSUE

Apr 09, 2015 | Kia Cars & Trucks

1 Answer

I have a 1998 Toyota caldina gt and lately while idling it starts reving up and down on its own. I also noticed today that after driving I pulled up my drive and put on the brakes which seemed tighter and...


If the brakes feel " Tight" then there is a fault with the brake servo/booster. Get a tech to check the hose and connections of the servo because any split in the servo/booster hose will affect the intake manifold vacuum and cause poor running. Fix the servo line and it will probably fix the main problem as well. May only be a clip want tightening. Get a knowledgeable person to help if you are not sure yourself.

Oct 20, 2014 | Toyota Cars & Trucks

2 Answers

Over reving


Can be a number of things (check all of these):

  1. Stuck throttle linkage or accelerator pedal;
  2. Loose butterfly on throttle body;
  3. Stuck or malfunctioning idle air controller;
  4. Loose or damaged throttle body or bad throttle body gasket;
  5. Cracked intake manifold or bad intake manifold gasket;
  6. Bad ignition control module.

Jun 24, 2014 | 1994 Eagle Summit

1 Answer

I am having serious problems with the idle modual it reves at the norm then all of a sudden the reves just increase up to roughly 2.300 and then come down to near stalling


First Check All Air hoses. Make sure no vacuum leak are present.
make sure your ignition coil are good. This will make engine idle roughly. For the rpm to high or to low maybe your air idler is no good. If you're car turn off it might be overheated. Check coolant level. Make your not mixing water with oil. Check the oil dipstick to verify. If like a milky color then it's mixing water with oil. This will car to stall and run roughly

May 08, 2014 | 1995 Mazda 626

1 Answer

Holden/Chev Cruze 2003 clonking out


run fault codes to check that you got the right sensor replaced

Nov 06, 2013 | Cars & Trucks

2 Answers

2003 4 cylinder 5-speed tiburon,engine just


This generally indicates a vaccumn leak, or sticking idle air control valve.

Jun 20, 2009 | 2003 Hyundai Tiburon

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

Related Topics:

81 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76691 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8531 Answers

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

Answer questions

Manuals & User Guides

Loading...