Jet Fan Switch
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Junior Member
Joined: Mar 2004
Posts: 5
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Car: 89 IROC
Engine: 305 TPI
Transmission: 5 Speed
Jet Fan Switch
Hello,
I just recently bought a jet fan switch to go along with a new computer chip and stat, and I cant find the switch on the engine. I contacted Jet and they told me it was on the passenger side of the engine bettween 6 & 8. Im guessing its on the engine block? I was reading some posts here and I read that there was also a fan relay switch around the same place? If there is how do I tell the diffrence? Specifics on the location of the fan switch would be greatly appreciated.
Thanks.
I just recently bought a jet fan switch to go along with a new computer chip and stat, and I cant find the switch on the engine. I contacted Jet and they told me it was on the passenger side of the engine bettween 6 & 8. Im guessing its on the engine block? I was reading some posts here and I read that there was also a fan relay switch around the same place? If there is how do I tell the diffrence? Specifics on the location of the fan switch would be greatly appreciated.
Thanks.
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Joined: Apr 2004
Posts: 584
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From: TEXAS
Car: 88GTAnotchbac/91 -Z/66 Chevelle
Engine: All strokers
Transmission: Pro built 700r4's
Fan switch
Get your car on ramps ,Slide under neath to the passenger's side of the block. Look at the side cylinder head between the last two cylinders wich are number 6 and number 8 cylinders. Its going to be kinda hard to see because the nose of your starter will be right lined up with sensor but it screws into the side of the cylinder head.
The easiest way to do this is to disconnect your battery then drop your starter and get it out of the way. then you can really see what your doing.
The easiest way to do this is to disconnect your battery then drop your starter and get it out of the way. then you can really see what your doing.
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Junior Member
Joined: Mar 2004
Posts: 5
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Car: 89 IROC
Engine: 305 TPI
Transmission: 5 Speed
Thanks for the detailed description. I'm pretty sure I've located it now. Its between 6 & 8 right under the exaust manifold correct, right near the spark plugs? I saw another sensor under there that looked similar but was way lower, just above the oil pan lined up with the other sensor, and right in front of the starter, from your descripton that could be it also? the one up by the spark plugs has a black plastic cap which was not even on the sensor and exploded into 20 peices when I tried to put it back on. The sensor in front of the starter has a white plastic cap. At least I've narrowed it down to two possiblities now. Any help on which one it is would be great, Thanks.
Supreme Member
Joined: Feb 2004
Posts: 1,231
Likes: 1
From: Greenville, SC
Car: 1991 Chevy Camaro
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
You are correct on the location of the fan switch (the sensor with the black plastic cap, as you said). Other sensor that you mentioned (the one with the white plastic cap) is the knock sensor.
Senior Member
Joined: Apr 2004
Posts: 584
Likes: 0
From: TEXAS
Car: 88GTAnotchbac/91 -Z/66 Chevelle
Engine: All strokers
Transmission: Pro built 700r4's
location
Originally posted by jl0gue
Thanks for the detailed description. I'm pretty sure I've located it now. Its between 6 & 8 right under the exaust manifold correct, right near the spark plugs? I saw another sensor under there that looked similar but was way lower, just above the oil pan lined up with the other sensor, and right in front of the starter, from your descripton that could be it also? the one up by the spark plugs has a black plastic cap which was not even on the sensor and exploded into 20 peices when I tried to put it back on. The sensor in front of the starter has a white plastic cap. At least I've narrowed it down to two possiblities now. Any help on which one it is would be great, Thanks.
Thanks for the detailed description. I'm pretty sure I've located it now. Its between 6 & 8 right under the exaust manifold correct, right near the spark plugs? I saw another sensor under there that looked similar but was way lower, just above the oil pan lined up with the other sensor, and right in front of the starter, from your descripton that could be it also? the one up by the spark plugs has a black plastic cap which was not even on the sensor and exploded into 20 peices when I tried to put it back on. The sensor in front of the starter has a white plastic cap. At least I've narrowed it down to two possiblities now. Any help on which one it is would be great, Thanks.
Removing your starter will seem like a huge pain in the a$$ but it will make your job a breeze.
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