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
103,085

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
103,085

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 3,274 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
51 Great Deals out of 2,276 listings starting at $5,500
Used Jeep Wrangler
147 Great Deals out of 5,072 listings starting at $6,995
Used Jeep Cherokee
102 Great Deals out of 1,644 listings starting at $4,950
Used Ford F-150
289 Great Deals out of 15,384 listings starting at $1,712
Used Toyota 4Runner
14 Great Deals out of 328 listings starting at $9,900
Used Chevrolet Tahoe
19 Great Deals out of 716 listings starting at $5,995
Used Ford Explorer
83 Great Deals out of 1,991 listings starting at $2,999
Used Chevrolet Silverado 1500
211 Great Deals out of 5,943 listings starting at $3,995
Used BMW X5
45 Great Deals out of 1,184 listings starting at $3,900

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.