Heat and Temp Gauge Concern

Asked by FoxPom Mar 10, 2018 at 07:13 AM about the 1997 Ford F-150 XLT 4WD Extended Cab SB

Question type: Maintenance & Repair

The heat started blowing cold for awhile and the temp gauge quickly shot up to hot then quickly fell back down to normal and the heat was ok. The shop said no "external coolant leaks at the time. Performed hydrocarbon test and found over 2,000 ppm combustion gases in cooling system. Combustion pressure and gas being introduced into cooling system. This is creating air bubbles in the system and leading to overheating". Since then it runs fine and have put over 1,000 miles without any more problems. Question:can it get worse or can I use a additive like Bar's head sealer to help at this point.? Also, is it possible for the computer to be hacked into to cause a temporary problem like this? I'm serious in asking this question. Thanks for your help.

1 Answer

26,220

If the car is now running fine and no more problems after 1000 miles, don't mess with it. Remember, "If it ain't broken, don't fix it". You can end up with a bigger problem. Personal experience!

1 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    OJ
    Reputation
    42,480
  • #2
    Gene Arnett
    Reputation
    16,040
  • #3
    Rowefast
    Reputation
    15,840
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
126 Great Deals out of 6,796 listings starting at $3,975
Used Toyota Tacoma
53 Great Deals out of 1,029 listings starting at $8,708
Used Dodge RAM 1500
7 Great Deals out of 82 listings starting at $4,000
Used Ford F-250
6 listings
Used Ford Ranger
14 Great Deals out of 1,451 listings starting at $2,888
Used Ford Mustang
51 Great Deals out of 1,253 listings starting at $4,995

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.