my check engine light is on also cooling sensor bad

Asked by Oct 21, 2014 at 11:41 PM about the 1999 Jeep Grand Cherokee Limited 4WD

Question type: Maintenance & Repair

It is a 1999 grand cherokee.  My friend put it into low 4wd and then to disengage put it in
reverse.  Now at speeds of 50 or higher the rpms go high and gear won't change.  I can
let it sit then it runs again and same thing giving it gas revs the rpm and it looses power

8 Answers

19,640

Sounds like it might be stuck in 4wd. Start the Jeep. Put the gear selector in neutral, then put the transfer case selector in 4 low. Now take it out of 4low into 4hi. Move the gear selector into drive, pull foward and then shift the transfer case into 2wd. That should take care of it.

2 of 2 people found this helpful.
Best Answer

iiiiit does not have 2wd on transfer case only 4wheel all neutral and 4L

19,640

You should have 2 selectors between the front seats. One is just for the transmission, park, reverse, neutral, and drive including 3-2-1. The other lever is for the transfer case or 4x4 selector. It has either just 2wd, part time 4x4, full time 4x4 and 4low. Or it has 4x4hi and 4x4 low. Yours might not have the 2wd option. Which means its a full time 4wd. What does yours look like?

2 of 2 people found this helpful.
19,640

Ok then don't worry about 2wd. Just do what I said earlier and skip the 2wd part. If its revving high before shifting check the transmission fluid level.

1 of 1 people found this helpful.
19,640

Get the check engine light looked at. Autozone does it for free. Have the coolant sensor replaced.

1 of 1 people found this helpful.

yes it is a 4 wd fultime

thanks Mark. I will do those things tomorrow. I was afraid putting in reverse while in 4l damaged the transmission. I hope not. What is that coolant sensor for.

19,640

No problem. (My names not Mark). Putting it into reverse won't hurt it at all in 4low. However, driving around with it stuck in 4low is very bad. 4low is strictly for short range driving. Pulling someone out of a ditch/snowbank/mud, taking a boat trailer in or out of the water. Things like that. You just have to be stopped and the transmission selector has to be in neutral to go in or out of 4low. A coolant sensor let you know if the engine is low on anti-freeze. Hopefully this helps you out and everything is an easy fix tomorrow.

Your Answer

Add photo

Related Questions

  • my check engine light is on also cooling sensor bad 8 answers

    It is a 1999 grand cherokee. My friend put it into low 4wd and then to disengage put it in reverse. Now at speeds of 50 or higher the rpms go high and gear won't change. I can let it sit then it ...

    1999 Jeep Grand Cherokee Limited 4WD

    -

    Maintenance & Repair

  • I have a 95 JGC 4.0, i just replaced the CAT and now my check engine light is on. 2 answers

    I went about 3 years without a CAT and i just put one back on it and the check engine light comes on after the engine warms up. Please help.Could it be the O2 sensor?

    Jeep Grand Cherokee

    -

    Maintenance & Repair

  • How to determine the code when Check Engine light is on and idles rough 2 answers

    My 2004 Jeep Grand Cherokee will suddenly start running rough at idle and is now starting to misfire under acceleration.

    2004 Jeep Grand Cherokee Limited 4WD

    -

    Maintenance & Repair

  • jeep check engine light 6 answers

    So out of no where, I'm driving ( hwy) and my check engine light comes on and I get the msg check gauges and the temp gauge immediately dropped right to cold, but yet I am still getting heat.

    2005 Jeep Grand Cherokee Laredo

    -

    Maintenance & Repair

  • Check Engine Light On HELP! 2 answers

    So the other day my CEL came on and I went to auto zone to get it read. What it came back as was a P0302 code stating that I was having a misfire of cylinder 2, which could of been caused by a bad...

    2011 Jeep Grand Cherokee Laredo

    -

    Maintenance & Repair

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 72,325 nationwide Grand Cherokee listings starting at $1,200.

ZIP:

Search Jeep Grand Cherokee Questions

Jeep Grand Cherokee Experts

#1 inuevafreak
inuevafreak
Reputation 2,100
#2 Tom Demyan
Tom Demyan
Reputation 1,890
#3 thejeepdoctor
thejeepdoctor
Reputation 1,770
View All

Related Models For Sale

Used Jeep Cherokee
350 Great Deals out of 40,143 listings starting at $1,500
Used Ford Explorer
914 Great Deals out of 63,252 listings starting at $700
Used Jeep Wrangler
283 Great Deals out of 15,778 listings starting at $3,795
Used Toyota 4Runner
227 Great Deals out of 19,339 listings starting at $2,300
Used Dodge Durango
273 Great Deals out of 20,982 listings starting at $1,500
Used Chevrolet Tahoe
598 Great Deals out of 33,195 listings starting at $1,375
Used Ford F-150
2,089 Great Deals out of 191,500 listings starting at $290
Used Chevrolet Silverado 1500
1,933 Great Deals out of 182,800 listings starting at $999
Used BMW X5
463 Great Deals out of 14,642 listings starting at $1,499
Used Chevrolet Camaro
375 Great Deals out of 31,274 listings starting at $2,500
Used Ford Mustang
689 Great Deals out of 44,320 listings starting at $1,500

Used Cars For Sale

2018 Jeep Grand Cherokee Limited 4WD For Sale
40 listings starting at $42,180
2017 Jeep Grand Cherokee Limited 4WD For Sale
21 Great Deals out of 14,644 listings starting at $29,980
2016 Jeep Grand Cherokee Limited 4WD For Sale
63 Great Deals out of 935 listings starting at $23,924
2015 Jeep Grand Cherokee Limited 4WD For Sale
60 Great Deals out of 1,728 listings starting at $18,995
2014 Jeep Grand Cherokee Limited 4WD For Sale
83 Great Deals out of 3,020 listings starting at $14,520

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.