Question about 1998 GMC Envoy

1 Answer

Code P0452 keeps coming up and the check engin light is on

Also when I push the 4hi or 4 lo it blinks and then nothing

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • GMC Master
  • 1,311 Answers

P0452 is related to the Evaporative Emissions Control system and has nothing to do with the 4WD system.
The P0452 may be something as simple as a loose or bad gas cap.
The 4WD system is somewhat complicated and requires more diagnostics.

Posted on May 10, 2014

6 Suggested Answers

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

  • 55 Answers

SOURCE: obdII code P0452 Evaporative Emission constro system pressure low

It is not connected to the code. The tranny has a temp sensor for overdrive not to work when tranny is cold

Posted on Jan 29, 2009

  • 3 Answers

SOURCE: 2000 gmc yukon xl 4x4 wont engage

see my posting re this at my name: rlf107. $115 in parts and labor solved for me, on a 2000 Yukon XL

Posted on Feb 28, 2009

  • 3 Answers

SOURCE: 2000 gmc yukon xl 4x4 wont engage

$115 inparts and lobor fixed for me...see my solution posting by clicking on my name.

Posted on Feb 28, 2009

jsmes1027
  • 749 Answers

SOURCE: have codes p0452 & p0453 tank pressure lo

This sounds like the fuel tank pressure sensor is malfunctioning.It is located on top of the tank by the fuel pump.It looks like a black square that is about 3/4"x3/4".The tank may have to be lowered down to see this.

Posted on Sep 11, 2010

  • 3 Answers

SOURCE: i have a 2002 gmc sierra 2500 hd and the 4 wheel

It is the buttons. It is about a $50 part new on ebay. Easy to replace. Just pull gently on the dash bezel. I believe there are two screws/bolts. Pull it out and disconnect the wire harness. Then just plug it in and put it back together.

Posted on Jan 20, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My 2004 Chevrolet 4wd Blazer is having troubles going into/staying in 4hi. I put it in neutral, foot on the brake and mash the button. The 4 Hi and 4 Lo buttons blink and you can here some sort of...


The blinking is a trouble code, a qualified Tech with a good scanner should be able to pinpoint the problem. There are many components in this system, trying to replace them on guesses can get very expensive fast.

Jan 11, 2011 | 2004 Chevrolet Blazer

1 Answer

I was driving down the road and my 4WD HI light started blinking today on my 1997 Chevy 1500. If I put it in 4 LO the 4 HI light quits blinking and the 4 LO light comes on Press the 2WD button and the 4HI...


check switch connections,fluid level and actuator at transfer case if good have truck scanned for possible trouble code possibleas sensor or component going bad , some auto stores such as auto zone /advanced auto do it for free if theres a trouble code it will be a starting point

Oct 29, 2009 | 1999 Chevrolet Silverado 1500

3 Answers

97 GMC Z71 4X4 Not Locking in


If it's a shift - on - the - fly 4wd, then call your local Chevy truck dealer. There was a recall on the Electronic 4wd on these trucks. (common problem). Try this just for the heck of it. With the truck stopped, put in 4hi/lo, then put it in reverse. Back up slightly, (about 5ft or so) and then put it in drive (or first in a manual trans) and go forward. Did it lock in? If it locks in but won't unlock, try backing up to unlock. Hope this helps.

Jul 26, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Chevrolet truck 4wd switch blinks


If they are blinking I believe it means that there are fault codes present in the pcm. You need to get the computer scaned to see if there are an codes present. If you live near an Autozone or Checker autoparts they can scan it for free.

Jun 21, 2009 | 1996 Chevrolet K1500

1 Answer

4 lo working, 4 hi stopped working , A4WD never worked


Hi my name is Juan and I do own a trailblazer with the same year 2002 and I read the problem you have let me try to help you Have you try to shift to 4hi with your transmission in neutral ? the transmission needs to be in neutral in order to shift the transfer case to 4hi and the vehicle needs to be completely stooped also is your service 4wd light on?? if the light is on your transfer case needs service and it can be as simple as the switch inside your car or a solenoid that has not been detected by the computer

Mar 30, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

98 K1500 suburban, can not engage 4wd, HI or Lo runs otherwise


your doing it right but your accuater is bad 59.00 auto zone easy install

Feb 23, 2009 | 1998 Chevrolet Suburban

2 Answers

2000 gmc yukon xl 4x4 wont engage


try replacing decoder module on transfer case they are known to go bad causing same problem.

Jan 02, 2009 | 2000 GMC Yukon XL

3 Answers

I just bought a 2001 blazer 4.3 4wd and it was stuck in 4 low


It should tell you on the Shifter whether or not that you can Shift on the Fly. Check the Manual first if there is one in the Truck. Some Models had this and some Did not. Was an Extra from Factory Option.

Dec 31, 2008 | 2001 Chevrolet Blazer

Not finding what you are looking for?
1998 GMC Envoy Logo

389 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

75197 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

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

Answer questions

Manuals & User Guides

Loading...