Question about 2002 Jeep Grand Cherokee

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Fuel injectors mechanic said fuel injector leaking gas mechanic got problems cant get him back ti fix has already taken apart things to fix was to replace bands or seals on fuel injectors need service manual so i can get someone else to help me.

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  • Jeep Master
  • 5,370 Answers

For jeep grand Cherokee fuel injectors replacing, i suggest you to go the help oink provided below:-----

Its a complete step by step procedure to do so:-----


Fuel Injector Replacing Jeep Grand Cherokee

http://www.howtorepairguide.com/2012/11/fuel-injector-replacing-jeep-grand.html
-------------


How to Replace a Fuel Injector
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-injector.html-----------

How to Test and Replace Fuel Injectors on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-and-replace-fuel-injectors.html
------------

How to change fuel injector on 2005 gmc envoy?
http://schematicsdiagram.blogspot.in/2012/03/how-to-change-fuel-injector-on-2005-gmc.html
------------These will help.Thanks.

Posted on Nov 28, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

mcgyver468
  • 710 Answers

SOURCE: my 93 jeep grand cherokee runs rough while in idle

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

Posted on May 20, 2009

Larrysito
  • 73 Answers

SOURCE: diesel injector leaks air on 2002 jeep grand cherokee

There must by a copper ring if isnot under the jet it is y ....replace and tighten it .....

Posted on Jun 08, 2009

  • 115 Answers

SOURCE: 1998 wrangler 4.0, has a misfire code P0302

Hi,
I would suggest you look at the Coil and leads first as they are more likely to give a misfire also check the spark plugs and clean?replace them,you could check the compression on the cylinders to just to make sure,if you need more help E-mail me and i`ll try and help further,be carefull as there is up to 80,000 volts coming down the HT leads.

Posted on Aug 04, 2009

  • 6982 Answers

SOURCE: 2002 jeep grand cherokee 4.0 liter irregular idle.

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.

Posted on Sep 06, 2009

  • 4 Answers

SOURCE: Check Engine Light P0302 Code

If its the 4.0 engine......Replace the spark plugs

Posted on Aug 24, 2010

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Ok Darci this is Kyle Brazeal again I know it's not the O2 sensor I've already changed that so how can I tell which injector is stuck open and how do I fix it?


If an injector is stuck open, it would be hard to start, like in the morning. It looses fuel pressure. You can check the plugs for wetness and gas smell. This will help to isolate the injector. The only way to really check is to pull the fuel rail and leave the injectors on. Clean them and power up the fuel pump. clean them again and wait for the gas to seep out the injector/s. They should not seep or leak any fuel.

Jul 25, 2015 | Cars & Trucks

1 Answer

Why is gas leaking out my muffler?


If it is liquid gas, you likely have a hard fuel system fault pouring liquid gas into the engine unrestricted. This frequently is caused on older vehicles by things like fuel pressure regulator failures, injector or computer injector driver failures, or sometimes computer faults related to fuel control improperly stuck in lean mode so the computer thinks there isnt enough gas in the engine, and adds fuel till the sensors see the ratio is correct. But if the sensors that would tell it when it reaches correct amount are stuck or broken, it will add fuel sometimes nearly forever till it starts liquifying the exhaust (Seen a Toyota with a bad O2 sensor hit 13.3% CO from a bad pair of O2 sensors. For comparison, normal CO is 0.5% or less. it had 25x normal fuel enrichment amount!)

Basically its ridiculously dangerous. Dont drive the car like that, tow it to service or fix it. It can catch fire, choke passengers on HC fumes, it can hydralock the engine and cause it to blow or severely damage internal parts, it can destroy o2 sensors and catalytic converters and mufflers. If the fumes collect and ignite from sparks or heat, it can detonate like a grenade! Usually not enough to injure passengers, but you dont wanna find out, and even if it stays underneath in the exhaust it can blow the catalytic converter or muffler to kingdom come...and both are expensive to fix especially when it can be prevented, Seek service immediately. They need to check for mechanical fuel issues (leaking injector, stuck injector, leaking fuel pressure regulator) or excessive fuel trims (System is at +25 long and short term trims despite the fact its actually got too much gas already...computer thinks it needs more. The computer is likely very wrong!

Hope it helps.

May 04, 2015 | 2000 Ford Taurus

1 Answer

P0302 and low coolant


Hi there:

DTC P0302 - Misfire Detection Monitor - Cylinder 2 Misfire

A misfire is nothing more than a lack of combustion, which can be caused by poor fuel quality or metering, low compression, lack of spark or unmetered air entering the engine. There are other possible, less obvious causes as well, such as uncommanded Exhaust Gas Recirculatin (EGR), flow.

Other possible causes:
* Fuel injectors, related wiring, sensors and computer issues
* Running out of gas, or poor fuel quality
* Evaporative emissions system (EVAP) concerns: fuel vapors leaking into engine
* Incorrect Fuel Pressure
* EGR system concerns: leaking EGR valve or restricted ports
* Base engine concerns: low compression, valve train problems and timing issues
* Ignition system concerns including, but not limited to:
- Faulty spark plugs
- Faulty coil or related wiring
- Ignition module or related wiring issues
- Ignition related sensor faults or wiring issues

Hope this helps.

Apr 29, 2013 | 2005 Pontiac Grand Am

2 Answers

Misfired in number 2


could be plug or plugwires...have a tuneup maybe ??

Aug 21, 2012 | 2001 Oldsmobile Silhouette

2 Answers

I'm haveing a problem only when I give my villager gas. It acts like there is no gas. I changed fuel filter, mass air flow sensor, throulter position sensor, fuel pressur regulator, wires, cap, rotor,...


cant tell if you've been driving it or are still trying to get it going but...Vehicle wont run on varnish. Drain fuel system if it is nearly full. Use the electric fuel pump to do it. (disconnect fuel line near engine extend line into a bucket then trick fuel pump relay to stay on). reinstall fuel line. Replace fuel. injectors are probably not in the best shape, tank is probably contaminated and with a fuel pump short on life. Check all vacuum lines front to back and areas of hoses you cant see. make sure all connectors are clean and not corroded from sitting, If I was to give a guess after all these were corrected.. try replacing the MAP sensor (manifold air pressure ) car wont do anything but idle if this thing is bad. Good luck

Jul 05, 2011 | 1995 Mercury Villager

1 Answer

Engine cuts out like it cant get gas when accelerating, sometimes when at driving speed the car cant get gas , then after a min it runs fine , also trouble starting like it cant get gas...i dont smell...


Depending on year. I would check cheap things first. First check lines for leaks. Replace Fuel Filter with new one. If fuel injected? have fuel injectors checked. If Carberator? Check for Vacuum leaks around the throttle body, Check Intake, and carb itself for leaks. Now i would go ahead and check the Fuel pump. If Injectors? Have the fuel pressure checked. If Carb? Try a new Pump.
You didn't specify what year and model or what engine. So It's kinda hrd to figure it out. but i gave you the basics for all engines.

Jan 04, 2011 | Pontiac Grand Am Cars & Trucks

2 Answers

I have a 92 honda accord lx and the problem with it that it take too much gas about only 16 miles per gallon.


Start with a tune up. Always take care of the maintenance to narrow the problem. It sounds like fuel isn't getting combusted correctly. Weak spark or fuel delivery is possible.
Change the air filter, and the spark plugs. Check the resistance in you plug wires with an OHM meter to the specs in the manual. Check for any small cracks in your distributor cap, and replace if suspect.
Run some injector cleaner to your fuel tank, and check the seal area of your injectors for any leak sounds. They do have fuel injector kits to replace the o-rings when they go out. The injectors are usualy easy to access. A mechanic stethescope can aid in listening with some isolation.
Check the fuel filter for any leaks at the connections.
Fuel pressure regulator could be suspect if the car isn't running well. It is easy to replace this part.
Smell any gas under the hood? Look for leaks with engine off, but key to ON, so the pressure is there.
At worst, it could be worn valves or the valves not seating correctly. This would require the heads to be pulled, so the valves could be removed and the seats in the head can be repaired at a head shop.
Good Luck!

Feb 02, 2010 | 1992 Honda Accord

2 Answers

Engin runnig ruff. enjecters dupping alot of fuel. gas is burning rich.takeoff is dragging. no power at all. i already replced the egr valve,and altenator, and checked all vacum lines for leaks.i did a...


If it is the throttle body type you will have to replace the injectors, the alchol in gas kills th plastic parts in the injectors, be sure to buy from the dealer and get the new ones that will work with ethnoal, also costs $105.00 each there are two of them.

Jul 28, 2009 | 1995 GMC Sierra C1500

3 Answers

1989 Pontiac 6000 LE


Check AutoZone.com as they have an area where they can tell you where the parts are located on your car.

Jan 03, 2009 | 1989 Pontiac 6000

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