Question about 2000 Jeep Grand Cherokee

2 Answers

Engine runs OK but will misfire or cut out briefly, then run OK again. Suspect clogged injectors but could it be O2 sensor?

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.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 430 Answers

Or electronic control module (distrubitor) i had a similar problem a few years back....back firing....low power and stalling.

Posted on Dec 12, 2009

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Jeep Master
  • 5,763 Answers

Yes and yes. the thing to do would be to drive with a scanner hooked to computer to see which cylinder is missing and also a fuel preasure gauge to make sure its not loseing preasure,also you can watch the o2 to make sure its working right and not cutting out or leaning fuel out , it can also be a coil or wire.ive seen crank sensors also do this.good luck hope this helps.

Posted on Dec 12, 2009

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 there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

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

I have changed the plugs and wires ignition coil and cleaned the fuel injectors on my chevy aveo 2006 and it still had misfire codes on cylinder 2 and 3. what could it be? My check engine light burned out...


Try to disconnect the positive terminal on the battery for a minute to reset th computer. If the codes come back, then there is still a problem which usually is ignition or fuel (or bad O2 sensor). The car could run fine with a sputtering fuel injector but give misfire codes.If injectors don't give out a mist the cylinder doesn't burn the fuel all the way. If you replaced the ignition coil pack then get the injectors cleaned professionally or rebuilt.

If the injectors aren't working at peak capacity, then the air/fuel ratio will be off and the O2 sensor will try to compensate for the richness or leanness of the ratio by adding more fuel or cutting it. That could show up as a misfire.
SO you might have to go to a mechanic and have them check fuel pressure and test the fuel injectors for good spray pattern

Mar 05, 2015 | 2006 Chevrolet Colorado

1 Answer

Have codes indicating bank 2 running lean(po174,po153,po159) also have codes for misfires on all cylinders. Does the misfire trigger o2 codes or does bad o2 sensor cause misfires?


misfire could cause o2 codes. o2 sensors are measuring the oxygen in the exhaust - if you're sending unburnt fuel through there (like a misfire), it would throw the value way off. if you're getting a 'lean' error, I would first suspect a bad fuel injector. But you are having a misfire on all cylinders... I would then look at the ECU as it may be having issues sending the 'open' signals to the injectors.

Oct 18, 2014 | 2003 Jeep Liberty

1 Answer

I have a 2003 olds alero 2.2 ecotec engine,when first cranked the idle is fine,then die down the code shows p0300 rapid miss fires ,changed the plugs,switched out module,coil, it stiil does this,while its...


p0300 random misfire can becaused by a few different thing's - low fuel pressure or flow ,weak fuel pump, clogged fuel filter , clogged injectors , vacuum leaks , incorrect sensor input to PCM - mass airflow sensor or MAP sensor , TPS - throttle postion sensor , Hooking up a professional or factory scanner an viewing engine sensor data should be the first step in the diagnostic process , before ever replacing any parts . What are the fuel trims at ? Adding or taking away fuel ,O2 sensors switching normally ?
016 Engine Misfire Misfire Scan Data

Feb 23, 2018 | Cars & Trucks

1 Answer

2000 lincoln town car runs rich, with alittle misfire. It idles high.


Probably a clogged fuel injector. Try some fuel injector cleaner or replace the injectors.Could be a lot of other problems too. Bad O2 sensor, bad fuel pressure regulator. Need to do more diagnosis.

Jun 18, 2012 | Lincoln Town Car Cars & Trucks

1 Answer

Ford 2003 escape codes readed


Cauases or fault codes are not cut and dry, but here are the possible causes of codes P0316 and P0306 which are related codes.
P0316 - Engine Misfire Detected on Startup
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Engine fails to start
- Engine runs rough Possible causes - Crankshaft Position (CKP) sensor harness is open or shorted
- Crankshaft Position (CKP) sensor circuit poor electrical connection
- Faulty Crankshaft Position (CKP)
- Ignition System
- Fuel Injectors
- Running out of fuel
- Fuel Quality
- Faulty Engine Control Module (ECM) P0306 - Cylinder 6 Misfire Detected Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Lack/loss of power
- Hard start
- Engine hesitation
Possible causes - Faulty spark plug 6
- Faulty ignition coil 6
- Ignition coil 6 harness is open or shorted
- Ignition coil 6 poor electrical connection
- Clogged or faulty fuel injector 6
- Injector 6 harness is open or shorted
- Injector 6 poor electrical connection
- Improper spark plug 6
- Insufficient cylinder 6 compression
- Incorrect fuel pressure
- Intake air leak

Jan 17, 2012 | Cars & Trucks

2 Answers

I have a 97 k1500 that is burning fuel like crazy, it is running very lean, and seem to be misfiring often. I've change the spark pulgs and found that the entire left side 4plugs was black with suit. The...


If its burning fuel and the plugs are black with soot, then its burning rich. the codes you said are P0300 generic misfire and P1153 heated O2 sensor B2 S1, I would first suspect that O2 sensor. Bank 2 is the passenger side (right side) of the engine and doesn`t explain why the left side plugs are black with soot, unless you say the left side by looking at the front of the engine. If this is the case then definitely replace the forward O2 sensor in front of the catalytic converter on the passenger side of the engine.

Apr 10, 2011 | 1997 Chevrolet K1500

1 Answer

Misfire, 2002 3.4 l, V-6, Grand Am, only after sitting out in sun


i would check wiring at injector 6 for a bad contact if ok test injector

Jun 22, 2009 | 2002 Pontiac Grand Am

1 Answer

Multiple misfire


Hello;
Have your injectors tested and cleaned. You meay have a bad spray pattern on one or all of them. I have seen as many as six bad injectors on a V8. ALso you should be changing O2 sensors at 100k to keep the engine running top notch.
Hope this helps, please rate me highly.
Thanks;
Rich
RPM Northwest

Jan 29, 2009 | 1998 Chevrolet C1500

Not finding what you are looking for?
2000 Jeep Grand Cherokee Logo

92 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

Marvin
Marvin

Level 3 Expert

83096 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22382 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...