jeep grand cherokee starting problem followed by rough idle and will not drive.

Asked by Jun 10, 2013 at 07:22 PM about the 1999 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

my jeep was running just fine since i bought it back in February, just today it started
having problems starting, it would turn over a bit i would turn it off and then tried starting
it a second time and it would turn over and start up but with a lil sluggishness to it.
then as the day went on running errands it did this everytime i tried starting it, starting
on the second try. after i got home i let it idle for a bit while i was looking under the
hood and it had a rough idle. i went to put it in drive and it would just about die if i tried
giving it any gas. i put it back in park it started idling rougher until it died shortly after.

does anyone have any ideas what this could be? my grandfather thinks it could be a
fuel pump, vacuum hose leak, a pressure problem.. kind of a broad range of ideas... i
have no clue what it could be

5 Answers

45

plugs or plug wire not attached

2 out of 2 people think this is helpful.
45

check spark plugs or wires,you may only be running on 5 of 6 or 7 of 8.

675

if it hasn't lately, then give it a tune up. check the fuel pressure at the rail to see what you are getting. might also check your throttle position sensor and clean your idle air control units

2 out of 2 people think this is helpful.
195

I had a similar problem with my 2000 jgc 4.7 v8. It turned out to be sediment from fuel tank, travelling through fuel lines and affecting the injectors and plugs. Plugs showed heavy corrosion as a result. Solution for me: Replace fuel lines, fuel filter and plugs. Cleaned the injectors. Jeep is fine now though I'm still looking for a cleaner gas tank. Ian. Belfast. NI.

4 out of 4 people think this is helpful.
110

Bottom line you've got a bad Crankshaft sensor and a bad Camshaft sensor. Jeeps are notorious for this problem. I have a 2002 Grand Cherokee limited and could have saver $1000 if I would have replaced just the Camshaft sensor. I went through 7 months of suffering. A camshaft sensor will not show up most of the time in a scanner. Most of the time the scanner will only show a bad Crankshaft sensor. 1st replace the Camshaft sensor for $28 at Steve white motors ask for parts 828 464-3458. Ask for Nick or Keith. Take care. Rafael. PS. make sure is all Mopar no Generic garbage.

11 out of 11 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Stalling and rough idle problem. 9 answers

    My 2002 Grand Cherokee 4.0l recently started having rough idle problems. I did a tune up..changed the plugs.....replaced the coil rail.....air filter.....gas filter. The idle is still rough and now i...

    2002 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • What could be wrong with my 1996 Jeep Grand Cherokee? 40 answers

    I've been having problems with my Jeep. It started like 3 months ago, the engine just cuts off while I'm driving or at a stop light. In other occasions the engine starts skipping, turns off, then will...

    1996 Jeep Grand Cherokee Laredo

    -

    Maintenance & Repair

  • 2004 Jeep Grand Cherokee heat only hot when idling... 1 answer

    Hello. I'm driving a 2004 Jeep Grand Cherokee Laredo. When it's in idle, the heat blows out nice and warm and the temp gauge goes about halfway to 210 (the middle). As soon as I start driving, the tem...

    2004 Jeep Grand Cherokee

    -

    Maintenance & Repair

  • My 2002 jeep grand cherokee shut off while driving 3 answers

    This morning my jeep shut off on me while driving it. The jeep has been idiling rough and the engine light comes on then goes off after a few days. When i put it in park and tried to restart it it w...

    2002 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • Jeep cherokee turns off while driving. new crank sensor new distributor and still having problems 119 answers

    1994 Jeep cherokee

    1994 Jeep Cherokee 2 Dr Sport

    -

    Maintenance & Repair

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 74,105 nationwide Grand Cherokee listings starting at $800.

ZIP:

Search Jeep Grand Cherokee Questions

Jeep Grand Cherokee Experts

#1 inuevafreak
inuevafreak
Reputation 2,060
#2 Tom Demyan
Tom Demyan
Reputation 1,830
#3 thejeepdoctor
thejeepdoctor
Reputation 1,740
View All

Related Models For Sale

Used Jeep Cherokee
429 Great Deals out of 52,962 listings starting at $1,800
Used Jeep Wrangler
278 Great Deals out of 18,077 listings starting at $2,950
Used Ford Explorer
931 Great Deals out of 72,327 listings starting at $1,499
Used Toyota 4Runner
236 Great Deals out of 20,490 listings starting at $1,800
Used Dodge Durango
266 Great Deals out of 22,630 listings starting at $1,200
Used Chevrolet Tahoe
559 Great Deals out of 28,789 listings starting at $1,699
Used Ford F-150
2,211 Great Deals out of 205,382 listings starting at $1,499
Used Chevrolet Silverado 1500
1,658 Great Deals out of 174,454 listings starting at $1,300
Used BMW X5
409 Great Deals out of 16,914 listings starting at $1,999
Used Chevrolet Camaro
205 Great Deals out of 30,804 listings starting at $1,217

Used Cars For Sale

2017 Jeep Grand Cherokee Laredo 4WD For Sale
6,420 listings starting at $25,589
2016 Jeep Grand Cherokee Laredo 4WD For Sale
17 Great Deals out of 790 listings starting at $21,999
2015 Jeep Grand Cherokee Laredo 4WD For Sale
22 Great Deals out of 755 listings starting at $19,488
2014 Jeep Grand Cherokee Laredo 4WD For Sale
26 Great Deals out of 1,049 listings starting at $14,714
2013 Jeep Grand Cherokee Laredo 4WD For Sale
12 Great Deals out of 489 listings starting at $10,799

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.