i have a 1999 grand cherokee i have replaced the rad . fan the temp sensor amd fan relay , the fan runs all the time and temp gage is at bottom has code po118 please help

Asked by wart69 Dec 26, 2016 at 01:07 PM about the 1999 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

i have a 1999 grand cherokee i have replaced the rad . fan the temp sensor amd fan relay , the fan runs all the time and temp gage is at bottom has code po118 please help

3 Answers
103,215

KenF answered 7 years ago

You might need to flush the old coolant and replace with new coolant. http://repairpal.com/obd-ii-code-p0118

Mark helpful

wart69 answered 7 years ago

at the temp sensor it has 9 volts when I unplug the fan it goes down to 5 volts an the temp gage comes back I have changed the coolant all ready ????

Mark helpful
103,215

KenF answered 7 years ago

Check all your wiring and connectors, look for shorts, bad grounds or high impedance or other faults.

Mark helpful

Your Answer:

Related Questions

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 3,238 nationwide Grand Cherokee listings starting at $4,995.

Postal Code:

Shortcuts

Search Jeep Grand Cherokee Questions

CarGurus Experts

  • #1
    Hornet_2497
    Reputation
    8,960
  • #2
    Gene Arnett
    Reputation
    7,010
  • #3
    thejeepdoctor
    Reputation
    6,560
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Dodge Durango
46 Great Deals out of 2,266 listings starting at $5,500
Used Jeep Wrangler
145 Great Deals out of 5,071 listings starting at $5,450
Used Jeep Cherokee
97 Great Deals out of 1,654 listings starting at $3,950
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used Chevrolet Tahoe
24 Great Deals out of 911 listings starting at $11,900
Used Chevrolet Silverado 1500
202 Great Deals out of 5,975 listings starting at $2,975
Used Ford Explorer
86 Great Deals out of 2,065 listings starting at $2,999
Used Toyota 4Runner
10 Great Deals out of 304 listings starting at $9,700
Used Chevrolet Corvette
29 Great Deals out of 1,060 listings starting at $15,871

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. Content will be removed if CarGurus becomes aware that it violates our policies.