Mon Jul 08, 2013 3:56 pm by Admin

For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

Comments: 0

Latest topics
» LS3 Exhaust
Today at 3:14 pm by Porsche951toLS3

» Total number of LS conversions?
Today at 2:26 pm by 944-LT1

» 1984 Gen IV 5.3 Swap
Today at 2:03 pm by superman22x

» alignment specs
Today at 1:44 pm by sharkey

» 86` 944 turbo project
Yesterday at 8:00 pm by jpkinerk

» Question about 964 transmission into 924s/944
Yesterday at 1:52 pm by Hamr20

» New convert under way
Yesterday at 12:36 pm by sharkey

» For sale $150 Griffin for LS1 LS Radiator swap
Yesterday at 12:33 am by jshprd

» Vented Nose Panel
Wed Jan 17, 2018 4:00 pm by Hotrodz of Dallas

» Fitech vs GM PCM
Wed Jan 17, 2018 11:31 am by Hotrodz of Dallas

January 2018

Calendar Calendar

Log in

I forgot my password

Bad fan relay?

View previous topic View next topic Go down

Bad fan relay?

Post  jpkinerk on Mon May 04, 2015 9:04 pm

So I've been working on diagnosing a passagner side fan no turning on. I was about to replace the fan resistors under the dash, but went through all the easy stuff first; relays, fuses, etc. I noticed when I'd tap on the fan relay, the fan would kick on. Naturally I thought it was a bad relay so I swapped it out for a spare I had, however, I was able to repeat the issue with the spare relay. Could both relays really be bad? Seemed unlikely to me. 

Any ideas are much appreciated.

Posts : 149
Join date : 2013-02-13

Back to top Go down

Re: Bad fan relay?

Post  944-LT1 on Tue May 05, 2015 1:55 pm

Unlikely but very possible.

I'm guessing your car is an 1985.5+ but regardless, Id check the connectors/wiring under the fuse block. May be a corroded or damaged wire or connector. Check the original relay for any corrosion on the terminals.

I believe that relay is the furthest back in the block and right where any moisture would contact first as run-off from the windshield and wiper cover.

Posts : 1253
Join date : 2009-06-09
Age : 96
Location : NOTRE DAME

Back to top Go down

Re: Bad fan relay?

Post  jpkinerk on Tue May 05, 2015 8:54 pm

The original relay was pretty corroded. I kept my backup relay (with clean terminals) in the car and double checked the fuses. Went ahead and let the car idle for a while until the fans kicked on. In doing this, I discovered that it's only the low speed on fan #2 that isn't working. High speed kicks on just fine without tapping the relay. However, when both fans should be running low speed, I still have to tap on the relay to get fan #2 to engage low speed. Could this be a resistor? I guess I just ruled it out because of the tapping on the relay symptom.

Posts : 149
Join date : 2013-02-13

Back to top Go down

Re: Bad fan relay?

Post  Sponsored content

Sponsored content

Back to top Go down

View previous topic View next topic Back to top

- Similar topics

Permissions in this forum:
You cannot reply to topics in this forum