SOLFOOD94

My radiator fan wont turn on. Just replaced the fan and the relay under the hood. With a jumper wire jumping in the relay socket the fan came on a stayed on non stop even with the car off and key out. Anything else i should be checking? let me know HT!

SOLFOOD94

???

kyden

did you check the fan switch?

SOLFOOD94

The sender that is on the tstat housing? If so yes

Former User

Unplug the switch and then short the 2P connector with a jumper wire. Does the fan now run?

SOLFOOD94

With the key on and the the sensor plug jumped no it does not run

Former User

Check whether fuse 17 or 57 is blown.

SOLFOOD94

Is there a fuse diagram because i have the panel cover but no locator diagram

Former User

See FAQs sticky

SOLFOOD94

What does that mean? Im new

Former User

Click FAQs in my signature.

SOLFOOD94

Super helpful man. Unfortunately no blown fuses. How many sensors or switches are involved with the temp/fan. Because all of a suden my temp guage will work and then if i turn the key on again i wont. But this car has been like this forever. Im fixing alot of rigged up **** everyday. b20b in a 99hx ek coupe

Former User

Unplug the 2P connector on the fan switch. With the key in ON(II), does the green wire terminal have battery voltage to body ground?

Former User

The 1-wire temp sending unit is located below the distributor. Unplug it. Clean the connector and sending unit of oil and then fully seat the connector back on the unit.

SOLFOOD94

The casing around the end of the connector is torn back so i rewired it and cleaned it. Now when you say does it have power meaning turn the key on and test for power with a test light grounding it to the body??

Former User

That will work.

SOLFOOD94

Ok i will check the 2p connector in the morning i know that have jumped that connector and installed a new relay an the fan still wont come on by itself

SOLFOOD94

Ok ron i grounded the test light to the body and turned the key on and no power to the green wire in the 2p connector. So just to be certian i grounded the test light to the negative on the battery and still no power?

Former User

With the key in ON(II), now test whether the both top test tabs of 7.5A dash fuse 17 have battery voltage to body ground. Click the fuses link in my signature.

SOLFOOD94

What do you mean by both? Like check the top of the fuse or the cavity that holds the fuse or both?

Former User

SOLFOOD94

Ok i checked it out. The #17 fuse has a 20 amp fuse in its place. I checked the fuse itself and it has power through it. So i pulled the fuse and check the cavity that holds the fuse and the top slot does not have power but the bottom does wiht the key on.

Former User

Just to be clear, are you saying that both top test tabs of installed fuse 17 have battery voltage? If so, now check whether the fan relay in the hood fuse box gets voltage from the Blk/Yel wire via fuse 17.

Also install the proper 7.5A fuse in the #17 slot.

SOLFOOD94

Fuse port 17 the top tob has no power only the bottom tab of port 17.

Former User

If you did this^ voltage test with the fuse installed in the dash fuse box, then the fuse is blown. Did you click the link in my signature?