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 Passat
324 Great Deals out of 4,060 listings starting at $1,000
Used Volkswagen Jetta GLI
56 Great Deals out of 1,764 listings starting at $5,595
Used Honda Civic
1,297 Great Deals out of 26,038 listings starting at $997
Used Honda Accord
1,522 Great Deals out of 30,102 listings starting at $1,200
Used Toyota Camry
2,124 Great Deals out of 43,929 listings starting at $1,150
Used Toyota Corolla
1,396 Great Deals out of 27,591 listings starting at $1,450
Used Volkswagen Golf
81 Great Deals out of 865 listings starting at $3,376
Used Mazda MAZDA3
436 Great Deals out of 12,629 listings starting at $1,800
Used Hyundai Elantra
901 Great Deals out of 29,563 listings starting at $1,495
Used Nissan Altima
1,528 Great Deals out of 36,229 listings starting at $995
Used Volkswagen Golf GTI
185 Great Deals out of 5,131 listings starting at $3,599
Used BMW 3 Series
1,008 Great Deals out of 14,193 listings starting at $1,200
Used Audi A4
337 Great Deals out of 4,185 listings starting at $1,495
Used Nissan Sentra
840 Great Deals out of 43,273 listings starting at $1,190

Used Cars for Sale

2024 Volkswagen Jetta For Sale
64 Great Deals out of 2,174 listings starting at $15,999
2023 Volkswagen Jetta For Sale
36 Great Deals out of 530 listings starting at $15,998
2022 Volkswagen Jetta For Sale
24 Great Deals out of 269 listings starting at $11,995
2021 Volkswagen Jetta For Sale
77 Great Deals out of 1,198 listings starting at $9,550
2020 Volkswagen Jetta For Sale
69 Great Deals out of 779 listings starting at $8,995

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.