DaRKSLaiN

iTrader: (1)

Hi ! i´ve started my car this evening and i heard a horrible noise in the cockpit but sounds like it was on the engine bay, i opened the hood and i´ve found a relay (i suppose it is related to the cooling-fan system) constantly rebooting and doing a nose, even if you touch it you feel like mini-hits in his interior.

it´s this:


Could anyone tell me what´s his tech name to buy it up from Rockauto?

(I´ve wondered that it could be this : ACDELCO Part # 158240 {#14089936, 14103304} RELAY,FAN CONT 5-PIN OVAL SHAPE )



Do anyone of you guys have a problem like this any? Could be solved changing only that relay? (i even dont have the S.E.S lighted up, only lights up when doing contact you know, test mode)

Thanks a million in advance

Ward

iTrader: (1)

Yep, that's the fan relay, the one you found look like the correct replacement one. Does the relay get hot? Unplug it and check the connectors for corrosion, it could just be a bad connection.

DaRKSLaiN

iTrader: (1)

I´ll check it out Ward! The relay gets bit hot but not to stun me heheh, i´ll check for corrosion, but it even works ok, i have the stock thermostat and the fan starts to operate when 215F~, i even could start manually the backup fan with the AC controls.

Thanks!

Ward

iTrader: (1)

Well, as long as it's not getting super hot, like hot enough to burn your hand, then it's probably fine. I had a similar problem, my fan motors were worn out, and drawing way too much current, causing the fan relay to get extremely hot and act flaky. I wound up burning up a fan relay, and melting the relay connector. Had to solder a new one on from a donor car.

DaRKSLaiN

iTrader: (1)

Hi again!

Its so curious how this flaw works... the relay gets rebooting seldom when the car is once started up, bit hot, in first 5 mins it dont operate... then, when the car is over 1/4 of temp, it gets rebooting always "kra kra kra kra kra" but dont gets hot.

Then, when the car reachs the 220F limit (1/2 of temp) the Fan starts to operate and the relay shuts up. I have done to it a extensive cleaning in the contacts, but it´s still like this. I hope that replacing the relay with that one from rockauto will solve the things.

I´ve seen lots of relays and now im burned off, i dont know really which one will be a good replacement one for it.

I´ve seen : AIRTEX Part # 1R1246
FOUR SEASONS Part # 35895
ACDELCO Part # 158240

They aparently looks the same:



Could someone give me a hand?

DaRKSLaiN

iTrader: (1)

If anyone needs this for refference, i solved the issue, it was the Radiator Fan Switch, that was sending bad the signal. I changed it and no problems.

DAREDEVIL 1

What size fan switch did u stick in ?? stock or 185* ?

By the way, good info !!!! THANKS

DaRKSLaiN

iTrader: (1)

My setup right now its:

- Acdelco stock radiator fan switch.
- Dual fan Trans am stock setup, one starts at 220F, the working average temp is 180F right now because i changed the thermostat of stock (195F)
- Airtex Radiator fan Relay.

DaRKSLaiN

iTrader: (1)

Bump...

I think really that changing the Radiator Fan Swich the reboots of the relay will be gone, but it dont has be like that. I changed the thermostat to a 180F and the relay still rebooting...

Any Help?

DAREDEVIL 1

Get a new relay, autozone has them in stock. I thik its hanging up inside somehow ? Mine does no weird things,,,maybe its a transam thing ......

DaRKSLaiN

iTrader: (1)

I´ve tried 3 relays at the moment and still rebooting.

I even don´t have any problem before with this relay it just begin to do that

DAREDEVIL 1

Hey,,,LOL...relays can break u know ?!

Just get a new one and try it ,, if it does not help, bring it back to auto zone. Just don't scratch it up .

DaRKSLaiN

iTrader: (1)

Both two are from Rockauto, one is an Aiptex, another one is an ACDELCO. Both new. I even try to clean the contacts doing my best as Ward said, but no improvements.

It could be the electronic connector, i will dismount it to see if i improve a bit.

DAREDEVIL 1

OK, but why don't u rule out 1 thing at the time ????

U changed the switch, now change the relay and if that does not help ..its the wiring !!!!
U can't check the wiring if u don't know for shure its not the relay ....

DaRKSLaiN

iTrader: (1)

I´m telling you that i´ve change right now two new relays (even have a third that i supposed that it´s broken) and tried to change with the radiator fan switch because my mechanical told me that was this for sure... with no changes.

I think right now it´s or Wiring or the connector itself.

DAREDEVIL 1

Oh, well i thought its still the old relay. If its new then yes...your right !

Sorry

DaRKSLaiN

iTrader: (1)

Yesterday i tried to put the three relays that i have to see if there is any change. And the things got worse than ever... Before, when the relay reboots, when it comes to his top temp (215F-220F) it stops to reboot and the fan starts to operate.

Yesterday, not. It continue rebooting and i was out of the car making pics with my camera, i were out of the car about 6 mins while the car was running and when i get into the car the relay still rebooting and having a temp on the gauge of 240F!!! i inmediately i put ON the AC Fan to refresh it and go in a highway over 20 mins... the temp get down and i put the car in the garage.. so angry.

I´ve a revision with the mechanical in 30th Jan, but i still want to know why the F**K is doing this thing...