1993 Jeep Grand Cherokee Logo
Posted on May 20, 2009
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

My 93 jeep grand cherokee runs rough while in idle

I had my fuel pump and fuel filter replaced on my 6 cyl. 93 Jeep Grand Cherokee.....also had a tune up.....put in fuel injector cleaner....what's going on is that it is missing while it is in idle and while driving, I put the cleaner in and now it's not missing while I'm driving it, but only when the car is not moving. Does anyone know if I need to put in new fuel injectors?
It's not my lifters because the engine sounds strong while driving....there's no ticking coming from the valves. One person is telling me that the fuel injectors hardly ever get bad and that it's probably the Idle Control Sensor or the Master Air Flow Sensor.....what do you think.....my mechanic seems to believe that I need new fuel injectors.....do you think this is going to be a trial and error problem?

  • dreamdans6 May 20, 2009

    thanks for the advice.....I wish it was that cheap because I did call around and the only found one shop that cleans them....they want $125.00....seems to be way to much. I was thinking that maybe I should try and find ones from a newer model at a junkyard. Think that's wise? There are other years that are compatible to the 93.

×

2 Answers

Anonymous

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 710 Answers
  • Posted on May 20, 2009
Anonymous
Master
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.

Joined: Apr 21, 2009
Answers
710
Questions
0
Helped
351565
Points
2627

BEFORE CHANGING THE INJECTORS, TRY REMOVING THE HOSE THAT LEADS TO THE THROTTLE BODY AND CLEANING THE THROTTLE BODY AND THROTTLE PLATE. USING AN OLD TOOTHBRUSH AND A CAN OF CARB AND CHOKE SPRAY, SCRUB IT, WHILE WIPING OFF THE CARBON WITH A CLEAN CLOTH RAG. THIS SHOULD HELP IT RUN CLEANER AND WITH LESS MISSING. SPRAY A LITTLE CARB AND CHOKE WHILE THE ENGINE IS RUNNING AND KEEPING IT AT ABOUT 2000 RPM'S. HOPE THIS HELPS. PLEASE KEEP ME POSTED. THANKS FOR AN HONEST RATING AND FOR USING FIX-YA. GOOD LUCK

Jesse

Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

  • Expert 90 Answers
  • Posted on May 20, 2009
Jesse
Expert
Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

Joined: May 14, 2009
Answers
90
Questions
0
Helped
41743
Points
297

Injector cleaner that goes in the tank is ****. I would take the injectors off and have them cleaned by a profesional for about $30-$40. Or you can do it yourself but it is a task.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
3answers

96 grand cherokee starts& runs fine but then it goes into pig mode & over fuels dumping black sout out of exhaust

1996 jeep grand cherokee stalling at lights or stop signs - Forums ...

www.cnet.com > Forums > Car Tech

CNETJun 11, 2015 - My jeep grand cherokee 1996 has started stalling when at lights, stop signs, in park or ... It starts and drives but after stoping at the stores and parking when I came out I ... Mechanic changed already crank sensor, distributer pick up, fuel pump, idle .... Symptoms like the Jeep running fine, then stalling without warning usually ... 97 Jeep Grand Cherokee Laredo keep dying upon ignition
Jun 11, 2015
1996 Jeep Grand Cherokee just stopped while driving.
Jun 10, 2015
More results from www.cnet.com
Missing: pig
0helpful
1answer

WHAT ARE THE SYMPTOMS THAT A FUEL PUMP NEEDS TO BE REPLACED ON A 2000 JEEP GRAND CHEROKEE

it will not start or will idle rough or just die ....need to check to see if have pressure in the fuel rail...also turn key on and see if you hear the pump run in the fuel tank
0helpful
1answer

My 1994 Jeep Grand Cherokee with the 5.2L is very difficult to start if it has not been run in the previous 6 hours. Replaced ignition coil but didn't solve the problem. After sitting overnight it

Low fuel pressure.
You need to check the fuel pressure on the first crank and watch it as it is running.
Requires a special gauge.
If it were just a starting problem I would say it could be a pump relay, but not if it runs rough for 5 min.
Might be a dirty filter or problem in the tank.
0helpful
2answers

93 jeep cherokee-while cruising down interstate jeep sudenly started jerking, stalling, and lose of power. I pulled over to station. checked oil level, pressure, temp, alt output--all ok. jeep will start...

I don't know engine size? The fuel pressures I found was 31--39 psi, 92--95. I would use a gage and check proper fuel pressure.
How long since over-all tune-up? Any applicable trouble codes?
6helpful
2answers

How to replace spark plugs on 2000 jeep cherokee classic 6 cyl.? Also does 2000 cherokee have inline fuel filter?

TO REPLACE SPARK PLUGS YOU REMOVE COIL PACK MOUNTING BOLTS THEN REMOVE THE COIL PACK WITH BOOT OVER THE SPARK PLUG.YOU HAVE 6 INDIVIDUAL COIL PACK TO EACH CYLINDER. YOU NEED A 3/8 RATCHET WRENCH - LONG 3/8 EXTENSION -SPARK PLUG SOCKET - SPARK PLUG GAUGE.AND TORQUE WRENCH.THE 2000 MODEL JEEPS FUEL FILTER INSIDE THE TANK.1993 - 1996 MODEL JEEPS FUEL FILTER LOCATED LEFT SIDE OF THE VECHICLE NEAR THE FUEL TANK.
0helpful
1answer
0helpful
1answer

1998 Jeep Grand Cherokee has a rough idle at first

You do have a filter and it's mounted right on top of the pump on outside of tank...it is also the pressure regulator. You really should put a pressure gauge on the fuel system and check it out though. you may find there is a problem elsewhere. Good and proper testing is the only way to get answers about problems especially now that systems are all electronically controlled.
1helpful
2answers

93 grand cherokee has a very rough idle what could be the problem

Also check the vaccum hose from the fuel pressure regulator to the intake manifold, it is right on top, to the front right of the valve cover where the fuel lines attach to the fuel rail, there is a small vaccum hose that runs from the regulator to the intake manifold, I have a 93 grand cherokee limited w/ 4.0L 6cyl, it was hard to start at times, wouldnt start at times without starting fluid spray and had your symptoms at idle, running rough like it wanted to stall like it was out of gas, I had various opinions ranging from fuel pump was bad to the fuel filter to the fuel presure regulator, the fuel pump relay ,etc....after replacing the relay and having the same symptoms, some digging brought me to this vaccum hose, wich had a break in it, when it was replaced it allowed the regulator to have the correct fuel pressure output and solved all the afforementioned problems way cheaper than the suggested alternitives. good luck.
Not finding what you are looking for?

658 views

Ask a Question

Usually answered in minutes!

Top Jeep Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6988 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

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

Answer questions

Manuals & User Guides

Loading...