Mosquito fogger that is my jeep

Asked by Mar 30, 2016 at 11:13 PM about the 1996 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

I have a 96 4.0 grand cherokee. It's been sitting for
about a year, and i was told that the check light
came on followed by smoke and it was immediately
parked after. It had a rough idle as well. Long story
short, pcv was replaced and suddenly the check
light is off and says "PASS" on the OBDII. But it still
has a rough idle and runs like crap and smokes
when throttle is applied. Could that be from the
gunk that was sucked into the intake from the pcv
being stuck open?

4 Answers

5,705

sounds like it just needs some fresh fuel - especially if its been sitting for awhile. the check engine light is triggered immediately when there is a hard failure like you experienced, but something like a random misfire or harder to detect problem may take a full drive cycle to trigger the light

92,685

Is it white or blue smoke? White would indicate blown head gasket or a cracked head this the poor running, blue could be valves seals, piston rings, worn cylinder walls, etc. HTH

1 of 1 people found this helpful.

It's bluish. Like i said some of the oil was sucked up into the intake and idk if it's just burning off excess or what.

92,685

If it is just burn off then it should stop smoking with in a few miles, if you let it idle it may not have enough heat in the catalyst to fully burn the residue and will build up in the catalyst, so if you can't drive then run the engine rpm's up and down within reason until it burns off, or if it burns off. Then I would run a compression test just to make sure it is a weak or dead cylinder causing the bad running.

Your Answer

Add photo

Related Questions

  • jeep 1 answer

    1999 jeep grand Cherokee timing is set still no fire 4.0

    1999 Jeep Grand Cherokee

    -

    Maintenance & Repair

  • Jeep 1 answer

    What engine would fit in a 99 jeep grand Cherokee

    1999 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • jeep

    Jeep keeps wanting to rev up as soon as it gets up to temp at an idle

    2004 Jeep Grand Cherokee Laredo

    -

    Maintenance & Repair

  • Jeep 8 answers

    I have a 2002 4.7 jeep runs rough n stals out on idle bring it to bout 1000 rpms n it smooths out but let off the gas n idles rough n dies just replaced the water pump n did a compresion test n hav...

    2002 Jeep Grand Cherokee Limited 4WD

    -

    Maintenance & Repair

  • Jeep Reliability??? 6 answers

    Are any Jeep products reliable today?

    2017 Jeep Grand Cherokee

    -

    Shopping & Pricing

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 74,668 nationwide Grand Cherokee listings starting at $750.

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
414 Great Deals out of 52,538 listings starting at $1,800
Used Jeep Wrangler
271 Great Deals out of 18,084 listings starting at $2,950
Used Ford Explorer
948 Great Deals out of 72,548 listings starting at $1,499
Used Toyota 4Runner
241 Great Deals out of 20,380 listings starting at $1,800
Used Chevrolet Tahoe
561 Great Deals out of 28,965 listings starting at $1,699
Used Ford F-150
2,176 Great Deals out of 206,277 listings starting at $1,499
Used Chevrolet Camaro
219 Great Deals out of 30,798 listings starting at $1,217

Used Cars For Sale

2017 Jeep Grand Cherokee Laredo 4WD For Sale
6,562 listings starting at $25,339
2016 Jeep Grand Cherokee Laredo 4WD For Sale
19 Great Deals out of 770 listings starting at $21,499
2015 Jeep Grand Cherokee Laredo 4WD For Sale
23 Great Deals out of 763 listings starting at $19,488
2014 Jeep Grand Cherokee Laredo 4WD For Sale
23 Great Deals out of 1,065 listings starting at $14,995
2013 Jeep Grand Cherokee Laredo 4WD For Sale
10 Great Deals out of 488 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.