Question about 1993 GMC Suburban

1 Answer

'93 gmc suburban idles high (betw 1000 and 2000 rpm)

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.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,140 Answers

Check and make sure your choke wire is attached to choke. its on the passenger side of carb, round and usaully black. if fuel injected then could be bad throttle position sensor.

Posted on May 18, 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

High rpm at idle


Check the vacuum hoses, and the intake manifold gasket for a leak.

Feb 14, 2014 | 2001 GMC Jimmy

1 Answer

1993 gmc suburban rough idle, stall in reverse


Idle air control (IAC) control rpm idle during idle.

Test it on idle with ALL electrical on full force.
RPM should increase.
If RPM remain the same then IAC is question.

Jan 13, 2014 | 1993 GMC Suburban

1 Answer

A/C front is blowing warmer than rear air. A/C blows cooler at approx 1500 RPM but blows hot at idle. Checked low side pressure of 75psig. Not sure if this is a compressor problem??


As a mechanic, the first thing I would do is find out what the high and low pressure readings are at idle and at 1500 RPM.
Could be a blockage in one of the lines, or a blend door problem, or lack of air flow thru the radiator among other things.

Jul 30, 2012 | 1999 GMC Suburban

1 Answer

I have a problem with my1989 gmc suburban, the idle is set way too high ( apx 2700 rpm) where is the idle adjustment screw located on the carb?


there is no carb, and no adjustment. if it idles too high, there is a vacuum leak, so check the large hose going from the base of the throttle body to the valve cover. if thats OK, these are known to have a leak at the base gasket, usually at the rear of the throttle body. spray carb cleaner around the base and see if the idle changes, if it does, replace the base gasket.

Dec 05, 2010 | 1989 GMC Suburban

2 Answers

My 99 suburban idles at 1000 rpm in park with a new TPS at operating temp. What is the factory idle setting? how do I adjust rpm?


There no adjustment for idle, control by computer, TPS reading should be .50 volt's, you could have a vacum leak, check vacum line and check for vacum leak at base of intake manifold.

Jan 21, 2010 | 1999 GMC Suburban

1 Answer

1995 k2500 suburban idle too fast


replace the coolant temp sensor,it`s values are off,it is defective.Also if this does not work,witch I think It will,change the throttle position sensor.

Nov 15, 2009 | 1995 GMC Suburban

1 Answer

My 1989 gmc half ton truck will die out when truck rpm or idle drops down.


happens mostly in reverse at very low speed. change spark plugs to an ngk, increese gap by 0.01 and advance distributer about 1 or 2 digrees to increase idle from around 800 to 850 or 900.

Jul 17, 2009 | 1989 GMC Suburban

2 Answers

99 suburban missing only at idle


Hello;
Have you checked the fuel pressure? You may have a sticking fuel regulator, causing too much fuel at idle. Since it works fine off idle and cruise I would look there.
Thanks;
Rich
RPM Northwest

Jun 10, 2009 | 1999 GMC Suburban

1 Answer

No idle on 96 Suburban


Check IAC motor, or vacuum leak somewhere.

Jun 09, 2009 | 1996 GMC Suburban

Not finding what you are looking for?
1993 GMC Suburban Logo

Related Topics:

176 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

74896 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...