Question about 1998 Jeep Cherokee Grand 2WD

1 Answer

1998 jeep grand cherokee, with 4.0 6 engine will run fine most of the time. then it will be hard to start, miss, and die. then when it will start will run rough, die, and then it run fine for a while. i can not find the problem. d cerokeeh

Posted by on

  • 1 more comment 
  • wayne1r Apr 15, 2009

    starts runs rough, won't rev unless throttle pumped. catalyst glows red hot after 2/3 mins, if temp switch disconected then slightly better but pinks really bad. Then won't start just floods the plugs. Garage have changed the plugs, HT leads, coil, cleaned all the earth points to the engine and body but now seem to be at a loss. Their diagnostic equipment shows them no faults and when it runs they say everything on the live data is fine. Please Help!

  • chuck_maulsb Apr 16, 2009

    this seems like such a drastic measure to fix a problem that is so erratic. why would the vehicle run great for so long and then suddenly have a problem like this, very confused, usually I can find and fix problem, this has me really stumped.

  • Richard Scordino May 11, 2010

    I have an unproven theory about this that the timing chain if stretched, will throw the cam/crank phasing so far out the computer gets "confused" I had a similar problem and took radical steps to change it, by modifying the stock distributor to re-establish phasing. Last time I told someone how to do this I got a very poor rating so Ill let it go at that!!

×

1 Answer

  • 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
  • 6,982 Answers

OK...if someone gives me a bad rating on this, I'll be really annoyed...
saw off the "fixed" hold-down on the distributor and use a chevrolet smallblock hold-down. Once re-installed turn distributor ccw about 1/4" or slightly more. If I'm correct, engine should run fine after that.

Posted on Apr 16, 2009

  • Richard Scordino Apr 16, 2009

    I've got a really oong history in repair...I wrestled with my 4.0 for nearly a year, suspected something was retarding timing...checked every sensor five ways from sunday and everything was perfect. Out of frustration, I did something that mechanically would either prove that I was right or wrong. My problem was exactly as both of you stated. Immediately after making this mod, vehicle ran like I had swapped engines! That was a year ago in July...still perfect! I believe that the actual problem is in the timing chain but have not had time to lay it up and tear it apart to find out exactly why it works.

×

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

My jeep grand cherokee lardo 1997 runs great than just die and hard to start and when it does it runs find ?


ever do a tune up? sparks, filters, every 60K?
hard starts , in the macro.
1: in bad need of a tune up. RTM read the opr guide, on service points.
2: weak compression. (engine basics)
3: weak spark. (see tune up)
4: bad fueling, too rich, too lean (tests) (lean ? for got the fuel filter?)
5: EGR valve sticking open.


is this the 4.0L engine? the true causes very by which it is.

Nov 26, 2013 | 1995 Jeep Grand Cherokee

1 Answer

Have 98 Grand Cherokee..runs fine at 65 or 70 mph..but won't idle or run at low speeds..miss really bad.


depends on the engine 4.0 might think its a crank sensor located on the back of the motor bell housing area but need more info for diagnostics?

Jul 25, 2010 | 1998 Jeep Grand Cherokee

1 Answer

1997 jeep grand cherokee. low idle 500 rpm, runs fine but letting off the throttle it dies. starts right back up fine.


Most of the time an engine is supposed to idle at 5-600 RPM in Driveif it's not you can up the idle. But you also may have a vaccume leak.

Dec 21, 2009 | 1997 Jeep Grand Cherokee

2 Answers

95 jeep grand charokee laredo hard to start,


Check your spark plug, wires, distributor cap and finger. If you spark plugs older than 15000ml, replace them. To check your spark plug wires, use a tester (U can buy at any auto store) you hold direct on the wire and a small sparkling will show you if the wire works or not. You can check the wires also with this: use a single spark plug (don't remove one out your engine!), remove the wire from first SP, connect it with the single SP, hold it to ground, let someone start your engine...you need to see regular sparks.. do this step by step with all 6 wires. If all wires are fine, check the SP's, If you miss on one wire, replace the wire, if you miss on more than one, chekc the distributor cap and finger. If this items are older than 20000ml or 5 years, replace them.

Oct 27, 2009 | 1995 Jeep Grand Cherokee

2 Answers

1997 Jeep Grand Cherokee when start sometimes the


Most likely cause is the crankshaft sensor.

Jul 02, 2009 | 1998 Jeep Grand Cherokee

1 Answer

When engine is cold it starts right up but then has a miss !


is your check engine light on? check your O2 sensors

Jun 02, 2009 | 1998 Jeep Grand Cherokee

2 Answers

1999 4.0L Jeep Grand Cherokee shuts down after 20-30 minutes.


I'd suggest the ignition control module, however I'd have a certified mechanic check it out just in case...

Feb 01, 2009 | 1991 Jeep Cherokee Briarwood

1 Answer

Having trouble keeping my 98 jeep grand cherokee running


i recommend cleaning the throttle plates. they are located unter the intake hose form the engine to the air filter housing. if you open them with the engine not runniong you will see they will be covered in carbon. use a good carb cleaner and a rag to wipe them clean

Jan 20, 2009 | 1998 Jeep Grand Cherokee

1 Answer

1996 Jeep Grand Cherokee stalls when brakes are applied


My 2000 Grand Cherokee had the same problem, without all the sputtering, it would just die approaching a stop. We could only keep it running by slightly pushing down on the gas petal when coming to a stop. I replaced the Throttle Position Sensor, but that didn't change anything. A new mechanic I found replaced the Idle Air Control Valve, and we've had no problems in a week.

Jan 02, 2009 | 1986 Jeep Cherokee

Not finding what you are looking for?
Cars & Trucks Logo

437 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

75807 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22133 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8172 Answers

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

Answer questions

Manuals & User Guides

Loading...