Radiator fans

1LUVR4ME

MEMBER
2000 VOLKSWAGEN JETTA
1.8L
4 CYL
AUTOMATIC
173,000 MILES

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?

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Are you a mechanic, I can send you some wiring diagrams if you are?

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Monday, May 22nd, 2017 AT 10:19 AM

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.

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Monday, May 22nd, 2017 AT 11:43 AM

KEN L

MASTER CERTIFIED MECHANIC
48,363 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

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Monday, May 22nd, 2017 AT 9:28 PM