Radiator fans

2000 VOLKSWAGEN JETTA
173,000 MILES • 1.8L • 4 CYL • AUTOMATIC
Avatar
1LUVR4ME
  • MEMBER
  • 2 POSTS
We have changed out sensors put a new combination valve, replaced secondary air injection hoses, and then put a brand new radiator. Now the car seems to over heat after a while because the fans are not turning on when they should. I do not know what else to do?
May 18, 2017 at 4:01 AM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,554 POSTS
Are you a mechanic, I can send you some wiring diagrams if you are?
May 22, 2017 at 3:19 AM
Avatar
1LUVR4ME
  • MEMBER
  • 2 POSTS
My husband is actually the one who works on all the cars. But he is not certified. This one just had us stumped untik last night. One of the lines were completely clogged which was cuasing sone kind of back up now the fans turn on and no overheating!! But it seems like the battery doesnt want to stay charged because if i turn it off he will have to jump it.
May 22, 2017 at 4:43 AM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,554 POSTS
Hello,

First I want to say I like your user name. Next it sounds like you have two problems, first lets load test the battery which you can easily do by following this guide.

https://www.2carpros.com/articles/car-battery-load-test

On the engine fans running all the time it kind of sounds like you might have a blown head gasket. You can run this test to find out for sure.

https://www.2carpros.com/articles/head-gasket-blown-test

Please run some tests and get back to us so we can continue helping you.

Cheers, Ken

May 22, 2017 at 2:28 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle