check engine light is coming on and saying its because of a cooling problem but i cant figure out whats wrong with it can someone help?

Asked by johnathanera Jul 12, 2013 at 10:15 PM about the 2004 Volkswagen Jetta GL 1.8T Sedan FWD

Question type: Maintenance & Repair

My check engine light has recently turned on so I got my code reader and ran the code
and it told me that it was a cooling system problem I have replaced the coolant sensor
and that didn't work and the fans kick on as soon as the temperature of the engine gets
over 190 so I don't think that's the problem. Can someone please help me out? Thank
you for your time

2 Answers

get a NEW battery....undo the connection at the end of the 1/0 battery cable what connects to the ground/chassis...coarse wirebrush this free of paint and corrosion....re-attach assuring 300 Cold Cranking Amp starting ability...this and the one that goes to the motor block....the ECU gets fuzzy because it is seeing variable amperage and variable voltage...we aim to correct this condition by providing Solid Steady Power....incidentally the CEL will be reset once you disconnect the bolt for cleaning....fyi~

2 people found this helpful.
10

I had the same thing happen with my 2002 Jetta. The engine coolant light started flashing but my gauge temp wouldn't rise past the 190 mark so I figured it was my engine coolant sensor and I went out and bought a new one. When I got it installed the light was still flashing so I did some research and found the problem was my sensor in my coolant reservoir. The harness that connects the wire leads to the sensor on the side of the reservoir wasn't fully snapped in.once I clicked er in the light stopped flashing. Hopefully it's the same thing with your car. It could also be that the sensor itself is bad and in that case you will have to get a new coolant reservoir tank

1 people found this helpful.

Your Answer:

Own this car?

Share your experience with others.

2004 Volkswagen Jetta

Review another car

CarGurus Experts

  • #1
    Deathjam4
    Reputation
    12,620
  • #2
    Goodwrench707
    Reputation
    5,410
  • #3
    o_jayne
    Reputation
    2,680
View All

Know more, shop wisely

Search

Related Models For Sale

Used Volkswagen Jetta GLI
61 Great Deals out of 1,690 listings starting at $4,750
Used Volkswagen Passat
308 Great Deals out of 3,960 listings starting at $525
Used Honda Civic
1,385 Great Deals out of 24,658 listings starting at $1,299
Used Toyota Camry
1,985 Great Deals out of 39,727 listings starting at $1,750
Used Honda Accord
1,517 Great Deals out of 28,829 listings starting at $1,200
Used Toyota Corolla
1,413 Great Deals out of 25,604 listings starting at $1,350
Used Volkswagen Golf
57 Great Deals out of 822 listings starting at $3,995
Used Volkswagen Golf GTI
166 Great Deals out of 4,947 listings starting at $3,995
Used Hyundai Elantra
847 Great Deals out of 28,860 listings starting at $1,700
Used Mazda MAZDA3
441 Great Deals out of 12,644 listings starting at $1,500
Used Nissan Sentra
727 Great Deals out of 39,228 listings starting at $950
Used BMW 3 Series
984 Great Deals out of 13,100 listings starting at $1,500
Used Nissan Altima
1,502 Great Deals out of 34,427 listings starting at $875

Used Cars for Sale

2024 Volkswagen Jetta For Sale
46 Great Deals out of 2,700 listings starting at $15,900
2023 Volkswagen Jetta For Sale
50 Great Deals out of 559 listings starting at $14,498
2022 Volkswagen Jetta For Sale
27 Great Deals out of 293 listings starting at $12,399
2021 Volkswagen Jetta For Sale
91 Great Deals out of 1,237 listings starting at $9,550
2020 Volkswagen Jetta For Sale
67 Great Deals out of 818 listings starting at $9,499

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.