Question about 1999 Pontiac Grand Am GT

1 Answer

Check engine light came on and said map sensor. car has a rough idle, no power at take off. New map sensor was installed and car issues were not resolved. H E L P ! ! !

Posted by on

Ad

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
  • 1,165 Answers

Did you clear the trouble codes with the scanner? OBDII trouble codes must be cleared with a scanning tool. If the codes are not cleared the computer could be in the"limp home mode". Once the codes are cleared, drive the car for at least one day. If there is no improvement, scan the engine again for codes.

Posted on Jan 02, 2011

Ad

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.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2005 Dodge Ram 1500 4.7 Engine. Starts fine, Idles fine, but when engine shifts into high gear and RPM lowers engine runs really rough under load


Have you checked for a broken valve spring. Repaired a dodge engine with the same running issue as you have described and it was a broken intake valve spring.

Feb 22, 2015 | 2005 Dodge Ram 1500

1 Answer

Ranger problems


run fault codes and check for O2 sensor problem and MAP/MAF sensor problems. If it is misfiring then codes for injectors and plugs may also appear

Jul 18, 2014 | 2002 Ford Ranger Regular Cab

1 Answer

I have a 2001 Dodge Durango 4.7, the check engine light is on, is throwing a P0122 throttle position sensor voltage low code, removed TPS and replaced with a new sensor, started truck and check engine...


Did you check sensor wiring circuits? Orange wire is 5 volt ref, with key on. Black wire with lite blue tracer is ground. The other orange wire has a tracer color, that is signal wire.
The tps shares ref voltage and ground with map sensor. You may need to check map sensor? I'm not saying it is faulty, I don't know?

Jul 23, 2017 | Cars & Trucks

1 Answer

2003 envoy smells like fumes and idles rough


have you checked for a vacuum leak?pcv attached,no leaks around plenum,engine coolant temp sensor reading right.

May 31, 2012 | 2003 GMC Envoy Xl

1 Answer

2000 ford expedition ,,rough idle in park..rough idle in drive,, sometimes dies..rpm's in drive at idle 400...replaced iac


Check the fuel pressure at the rail assembly, there should be a min of 40 lbs at the rails. Do you have any loss of power under a load? You may have an issue with your o2 sensor that is causing the ecm to send an improper signal to the engine ign/fuel map.

Dec 07, 2010 | 2000 Ford Expedition

1 Answer

Idles okay, runs rough when gas applied


Either a bad MAP sensor, or TPS. What is the code for the check engine light? This will most likely tell you what it is.

May 27, 2009 | 1994 Chevrolet C1500

2 Answers

1993 olds cutlass supreme 3.1 multi port loading up at idle


Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Apr 07, 2009 | 1993 Oldsmobile Cutlass Supreme

1 Answer

Engine runs rough after about ten minutes /idles really low


Just trowing some suggestions out there, but, I would check the idle air control valve (solenoid) or the throttle position sensor. If they check out then my last guess would be the map sensor or the vaccuum to the map sensor. Hope I was able to help. Best wishes.

Jan 16, 2009 | 1991 Plymouth Laser

2 Answers

Rough running and rough idle


here is a diagram of the map sensor #5.

2009-10-07_190044_3.gif

Nov 25, 2008 | 2000 Chevrolet Tahoe

Not finding what you are looking for?
1999 Pontiac Grand Am GT Logo

317 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

78267 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

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

Answer questions

Manuals & User Guides

Loading...