Jet Fan Switch??
Jet Fan Switch??
Does anyone know where it goes? The sheet said between # 1&3 But that is the temp guage no?? Any help??
Thanks,
Cptmidway
------------------
1991 RS
A couple of mods.....still slow
Team Hells A-Holes
Member of SDFB
Thanks,
Cptmidway
------------------
1991 RS
A couple of mods.....still slow
Team Hells A-Holes
Member of SDFB
it goes in the head on the passenger side near the last two plugs closest to the window,underneath,might be a plastic connector U have to squeeze together to get it off the stock switch(at least it did on mine)
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Yah, the #1 and #3 is where the temp gauge sensor is. The fan switch goes on the passenger side, I think its between #6 and #8.
------------------
West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
------------------
West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
Thanks guys...I thought the sensor between # 6&8 was the Knock Sensor......
Thanks again,
CptMidway
------------------
1991 RS
A couple of mods.....still slow
Team Hells A-Holes
Member of SDFB
Thanks again,
CptMidway
------------------
1991 RS
A couple of mods.....still slow
Team Hells A-Holes
Member of SDFB
Moderator
Joined: Jul 1999
Posts: 2,184
Likes: 0
From: Tempe, AZ
Car: 92 RS, 02 Tacoma, 2 73 Porsche 914s
ya dont take out the knock sensor, i did that when i was putting mine in, and got coolant in my eyes. whatever you do, dont take out the knock sensor. its on the block, the one you are looking for i beleive is on the head like stated before.
Supreme Member

Joined: Oct 1999
Posts: 2,977
Likes: 1
From: Davison / Troy ,Michigan
Car: 1991 Pontiac Firebird
Engine: 3.8
Transmission: 700r4
Axle/Gears: Dana 60
What part number did u order for that Jet Fan Switch? I ordered one from them and that f-cking thing didn't even come close to fitting in that sensor hole. It was way to big. Tell me if everything goes smooth for u.
------------------
Eric Natzke
91 Firebird 305 TBI
ASCD Ram Air Hood-3" custom exaust-Flowmaster 80 Series-No Cat-Edelbrock TES Headers (coated)-March Pulleys-TBI Spacer-K&N Open ELement-TransGo Shift Kit-B&M Supercooler 28,000 GVW-Hypertech Thermomaster-180 Stat-3:42 GM Gears-Auburn Posi Unit-Edlebrock Strut Tower Brace-MSD Superconducters-MSD Cap & Rotor-MSD Blaster Coil-Rapidfire Plugs-265/50/R15 Tires-Emmison's all Gone-Free TBI mods
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html
------------------
Eric Natzke
91 Firebird 305 TBI
ASCD Ram Air Hood-3" custom exaust-Flowmaster 80 Series-No Cat-Edelbrock TES Headers (coated)-March Pulleys-TBI Spacer-K&N Open ELement-TransGo Shift Kit-B&M Supercooler 28,000 GVW-Hypertech Thermomaster-180 Stat-3:42 GM Gears-Auburn Posi Unit-Edlebrock Strut Tower Brace-MSD Superconducters-MSD Cap & Rotor-MSD Blaster Coil-Rapidfire Plugs-265/50/R15 Tires-Emmison's all Gone-Free TBI mods
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html
I ordered it through Summit. I'm pretty sure the part # is Jet-60600. Installation is easy....
Cptmidway
------------------
1991 RS
A couple of mods.....still slow
Team Hells A-Holes
Member of SDFB
Cptmidway
------------------
1991 RS
A couple of mods.....still slow
Team Hells A-Holes
Member of SDFB
Trending Topics
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
The knock sensor is under the fan switch, in the block. The fan switch is screwed into the head, while the knock sensor is screwed into the block. Make sure you change the top one, and you're ok. Also dont forget to drain your radiator before you change, and you're still going to get a bath of coolant. Make sure the car is cold.
I'm speaking from experience here, haha.
I'm speaking from experience here, haha. C'mon Kev.....Scalding yourself with hot oil or coolant is so much fun!! Especially when it's a customers' car! lol
------------------
1991 RS
A couple of mods.....still slow
Team Hells A-Holes
Member of SDFB
------------------
1991 RS
A couple of mods.....still slow
Team Hells A-Holes
Member of SDFB
Thread
Thread Starter
Forum
Replies
Last Post
FormulasOnly
Tech / General Engine
3
Sep 10, 2015 09:07 PM








