Why does the Check Engine Light keep coming on and how to close the trunk?

Asked by Aug 28, 2015 at 10:19 AM about the 2003 Volkswagen Jetta GL 2.0

Question type: General

First, I just paid nearly $400 to replace a thermostat, once the CEL light came on.  It's come back on 5 times since then.  3 times the auto repair place took it off with the scanner.  It's been going back on every 3 days, since the repairman took it off.
The timing belt was replaced last year at Firestone, and oil changes are done every 3 months at Jiffy Lube.   The repairman said my engine is fine, but the light keeps coming back on.

Now for what ever reason, just recently the trunk recently closed on its own,.  It worked for 2 days, and when the CEL light came back on so did the open door light.  So I guess nothings broken, but  the noise can be heard, but it won't lock.  Should I get a new battery, the guys at O'Reilly's says my alternator is good, so it keeps the battery good.  What to do?  Other than buy a new car.

2 Answers

http://www.napaautocare.com/estimator.aspx# -- $182 to replace thermostat

I sincerely wish I had some good answers.... but I don't . Other than to say there is no sensor or anything that will light the CEL and have thermostat as a DTC code. Overheating, lots of things but there is no code exists specifically for thermostat. And find another place to have your oil changed.. I caught Jiffy-Lube 'red handed' using Havoline motor oil conventional and I had asked for and paid for Mobil1 synthetic. (Nothing wrong with Havoline, just not what I wanted) And Jiffy-Lube has been busted before for services never done but customer paid for. AND services actually done but unnecessary. Most people don't know or pay attention, they trust the place to do what they are supposed to do but get ripped off. You should be able to trust them, and the vast majority are honest. But I bet they always try to talk you in to a transmission flush also. Right? Don't allow that. Also, if you use synthetic motor oil you can go a year or 10,000 miles. Conventional oil 6 months or 5000 miles (whatever comes first) Personally I don't push it that far, I use Mobil1 and change at 8000. Never a problem. Now, A good alternator will not necessarily keep battery good. The average life-span of a automotive battery is 4 to 5 years. Some will last longer depending on quality and number of start/stop cycles

Your Answer

Jetta

Looking for a Used Jetta in your area?

CarGurus has 35,297 nationwide Jetta listings starting at $1,400.

ZIP:

Volkswagen Jetta Experts

  • #1
    Goodwrench707
    Reputation
    2,460
  • #2
    Deathjam4
    Reputation
    1,950
  • #3
    Scott Sr.
    Reputation
    1,470
View All

Related Models For Sale

Used Volkswagen Passat
373 Great Deals out of 20,212 listings starting at $1,400
Used Honda Civic
761 Great Deals out of 69,168 listings starting at $1,350
Used Volkswagen GTI
132 Great Deals out of 7,974 listings starting at $2,100
Used Honda Accord
984 Great Deals out of 59,477 listings starting at $1,099
Used Volkswagen Golf
107 Great Deals out of 4,808 listings starting at $2,450
Used Toyota Camry
913 Great Deals out of 81,893 listings starting at $999
Used BMW 3 Series
1,096 Great Deals out of 33,530 listings starting at $1,000
Used Toyota Corolla
776 Great Deals out of 54,488 listings starting at $1,500
Used Audi A4
271 Great Deals out of 11,929 listings starting at $199
Used Nissan Altima
981 Great Deals out of 77,957 listings starting at $1,695
Used Mazda MAZDA3
327 Great Deals out of 26,200 listings starting at $950
Used Volkswagen Beetle
184 Great Deals out of 7,581 listings starting at $1,250
Used Ford Focus
776 Great Deals out of 55,461 listings starting at $800

Used Cars For Sale

2017 Volkswagen Jetta For Sale
19 Great Deals out of 14,895 listings starting at $10,517
2016 Volkswagen Jetta For Sale
56 Great Deals out of 1,874 listings starting at $7,983
2015 Volkswagen Jetta For Sale
123 Great Deals out of 2,994 listings starting at $6,990
2014 Volkswagen Jetta For Sale
179 Great Deals out of 4,147 listings starting at $5,900
2013 Volkswagen Jetta For Sale
61 Great Deals out of 1,365 listings starting at $4,999

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.