Question about 1996 Jeep Grand Cherokee

2 Answers

I have 2004 Jeep Grand Cherokee special Edition 4.0. Idles very rough. I have changed plugs, all 4 O2 sensors.and gas filter regulator. Vehicle continues to idle rough. Vehilce show no codes. Vehicle runs great other wise. Any ideas? Please help

Posted by on

Ad

2 Answers

  • 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.

  • Master
  • 1,985 Answers

Have you checked the IAC, idle air control,or cleaned the throttle body and plate.

Posted on Nov 25, 2009

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Check motor mounts and tranny mounts

Posted on Jan 27, 2013

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.
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

Grand cherokee o2 sensor straight 6


Sounds like an aftermarket O2 sensor was replaced. Should not be the problem unless your check engine light is on and giving that code. Also have you looked into your erg valve?

Dec 24, 2011 | 1998 Jeep Grand Cherokee

1 Answer

Hi, I Purchased a 2001 Jeep Grand Cherokee LTD with a 4.7L engine. Please keep in mind. I had the jeep fully inspected, when i purchased it. At the time it passed with flying colors. I have taken the...


check the O2 sensors in the exhaust manifold with a automotive meter not a code reader ,then trade it in for a diesel manual version as these are impressive but 4.7 litre gas guzler at our petrol prices about 10 dollars a gallon in the -uk and around 7/8 dollars here in spain this vehicle you couldnt give away here

Mar 04, 2011 | 2001 Jeep Grand Cherokee

1 Answer

All of a sudden my 2004 mercury grand marquis with 55000 miles idles rough. Not really noticeable when driving but do believe there is a lack of power and mpg seems to have declined. Can u help???


The vehicle is 7 years old

The spark plugs should have been changed at 60,000
Gas filter every 3 years
Air Filter every 3 years or sooner
The MAF Sensor cleaned every year
By now the O2 Sensors are slow to respond
If they have 100,000 change the front 2 sensors
Check TPS Voltage
Check Fuel Pressure at the fuel rail
Egr Valve most likely bad
If you have COP Ignition Coils, they may be misfiring,
common ford problem

Unrelated--change trans and power steering fluids
every 3 years,never go over 30,000 miles on any vehicle

Jan 26, 2011 | 2004 Mercury Grand Marquis

1 Answer

I can't give my jeep much gas or it will backfire and die. i have changed the tps and the mass air flow sensor and the fuel pump, 2000 grand cherokee.


Have your fuel pressure checked. It may be a bad regulator.

Try cleaning the throttlebody and air filter.

Check your spark plugs, coil and wires.

Check and make sure all of your injectors are clean.

Also you may want to check your o2 sensors. You can unplug them and drive a bit. If the problem goes away then they need replaced.

Oct 22, 2009 | 2000 Jeep Grand Cherokee

2 Answers

2002 jeep grand cherokee 4.0 liter irregular idle. When I start my jeep it idles high and low and revs up and down and then the idle finally settles. After it settles, the engine kind of hiccups and a...


You haven't changed everything...map sensor controls spark and fuel mixture as does the throttle position sensor, also check the idle control valve...Don't just buy stuff...do testing first.

Sep 06, 2009 | 2002 Jeep Grand Cherokee

1 Answer

Why is my grand 2004 grand cherochee idoling rough


The idle air control valve (IAC) may be stuck or failing. This solenoid-type device controls the airflow into the engine at idle. It is fed control input signals from the engine's computer. Over time, the IAC valve may become dirty from EGR gases and carbon, etc. It may have a worn pintle (valve head) or the return spring may be weak or broken, causing a rough idle or even stalling from an over-rich fuel/air mixture. The second thing to have checked is the throttle position sensor.TPS. These devices will "flag" a fault on your vehicle's onboard OBD-II computer, which a decent code reader/scanner can display and clear. Third, a dirty throttle body housing/venturi can cause rough idling and poor response. A special cleaner is needed to remove oil and carbon residues from the specially-coated inner surfaces of the throttle body. Fourth; you may have a Mass Airflow Sensor (MAF) that might be failing/malfunctioning. Some vehicles use these instead of the Manifold Absolute Pressure (MAP) Sensor, which you may have. These sensors need to be checked and verified that they are functioning properly. Fifth; check/change your vehicle's fuel filter, and verify proper/adequate fuel pump pressure and flow performance. Don't run your vehicle below 1/4 tank of fuel...doing this sharply reduces the life and cooling of the in-tank electric fuel pump. These are not cheap, or easy to replace!

Aug 31, 2009 | 2004 Jeep Grand Cherokee

1 Answer

Very rough idle on 2002 Jeep Grand Cherokee Limited Edition V8


If you haven't changed the plugs or had the fuel system cleaned, now would be a good time to do it. The number 1 culprit for rough idles is dirty injectors or plugs. You can try an injector cleaner in a can (or bottle) for under $10 and see if it helps, and then work from there. If there isn't any improvement then if you are able to, check the plugs for any gunky buildup and if you find a bad plug, make sure you replace them all (or have them replaced) at the same time.

Aug 03, 2009 | 1996 Jeep Grand Cherokee

Not finding what you are looking for?
1996 Jeep Grand Cherokee Logo

Related Topics:

743 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

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

Answer questions

Manuals & User Guides

Loading...