Question about 2003 GMC Envoy

1 Answer

Abnormal idle I already did change the fuel cap, but still causes me the same problem. Thanks for helping, i really appreciate it.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 113 Answers

Try checking for vacume leaks and have u had a tune up lately

Posted on Jun 27, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

P0442 I got the check engine light in my GMC savana 2008 I get this code P0442 it said. a small leak in detected can someone please help me with this problem I reset the code 2 times already the first time...


The P0442 code is for a small leak in the pressurized emission system. It can be caused from something as simple as not tightening the fuel cap all of the way after fueling, or a leaky seal at the gas cap, or a leaky o-ring around a number of sensors and fittings in the emission system. If you are sure that you are tightening the fuel cap all of the way, and have already replaced the fuel cap and see no nicks on the seal on the fuel cap or fuel neck, you might need to have the vehicle hooked up to a smoke machine to try and find where the leak is coming from.

Oct 12, 2014 | Cars & Trucks

1 Answer

1997 S-10 4.3 6 cyl, 5 speed, VIN X, 250,000 miles, Misfires under load, Fuel Pump and pressure good, Plugs, Cap, Wires and Coil replaced, Timing Chain replaced, Gets random multiple misfire code 0300 and...


Check the ohm's reading on the fuel injectors, they should each read around 14-16 ohm's cold for most 1997 GM engines, and if any fuel injectors are not within range replace them.

May 09, 2010 | 1997 Chevrolet S-10 Pickup

1 Answer

Hard Starts, Rough Idle


Certainly possible.Key on /engine off cycles the pump for 3 secs.In a quiet place like an enclosed garage you can hear these pumps running and at this stage it might sound abnormal, louder and squeel-ish in a sense.Then can be verified by taking fuel pressure readings with a test gauge...good luck

Jul 26, 2009 | 1997 Chevrolet K1500

2 Answers

Starts then dies imediately after starting.


It could be a defective ignition switch.

Apr 27, 2009 | 2000 Nissan Pathfinder

1 Answer

I have one here a problem with toyota corolla cars,even if ill put the idle screw into minimum,the idle is still high and the engine easily overheats,the mixing or air and fuel is somewhat abnormal,was the...


thanks for the advise but i found the solutions already,the whole map sensor set,the one with three wires(not the throttle sensor)maybe they call that as the air sensor,is the one causing the problem,it is shorted w/c make one of the transistor driver of this thing can get burn easily,even if i replaces a new one.Now my car is healthy again,thanks and more power.....

Mar 23, 2009 | 1995 Toyota Corolla

1 Answer

Abnormal idle


cahnge ur fuel cap it pressurezes the fuel system when the cap fails it can cause this

Jun 25, 2008 | 2003 GMC Envoy

Not finding what you are looking for?
2003 GMC Envoy Logo

Related Topics:

50 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

61292 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...