JET low temp cooling fan switch..which coolant temp sensor to replace
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From: Hudson OH
JET low temp cooling fan switch..which coolant temp sensor to replace
Someone on another board thought that the switch I need to remove is on the drivers side of the motor. I looked in the manual and there is a coolant temp sender there. But in the service manuals it says the switch for the fans is on the pass side by the dipstick tube.
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From: The Top of Utah
Re: JET low temp cooling fan switch..which coolant temp sensor to replace (brock71)
GM swapped the location of the temperature guage sending unit with the fan switch, several times. Go with your manual. If you'll give us the YEAR of your car, I may be able to confirm the location with my parts book.
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Team Owner
Joined: Mar 2000
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From: Boston, MA
88 will have the fan switch between cylinders #1 & #3.
p.s.
To identify.
Coolant Temp Sendor for Cluster is a 1 pring flat blade connector.
Fan Swtich is a push on round single wire connector.
[Modified by scorp508, 1:08 PM 2/20/2004]
p.s.
To identify.
Coolant Temp Sendor for Cluster is a 1 pring flat blade connector.
Fan Swtich is a push on round single wire connector.
[Modified by scorp508, 1:08 PM 2/20/2004]
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From: Hudson OH
Re: (scorp508)
It is an 88. That's what the connector on this temp swich looks like. Round.
Odd though that the 88 service manual says it's by the dip stick...but hey you guys probably know the cars better than I do at this point.
Odd though that the 88 service manual says it's by the dip stick...but hey you guys probably know the cars better than I do at this point.
Cruising
Joined: Jan 2004
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Re: Cannot remove head plug
Gentleman. I just purchased the Jet fan kit for my 94' and cannot remove the plug from the drivers head between plugs 1 and 3... Any suggestions? I heated the surronding area, used a .5" impact, large breaker bar and am losing my patience. There are no other plugs on the engine.
Comments?
Thanks
Comments?
Thanks
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Le Mans Master
Joined: Jun 2002
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From: High Plains Drifter Fayetteville, AR
Re: Cannot remove head plug (427 Big Block)
Gentleman. I just purchased the Jet fan kit for my 94' and cannot remove the plug from the drivers head between plugs 1 and 3... Any suggestions? I heated the surronding area, used a .5" impact, large breaker bar and am losing my patience. There are no other plugs on the engine.
Comments?
Thanks
Comments?
Thanks
Burning Brakes
Joined: Dec 2002
Posts: 1,199
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From: Cairns Australia
Re: Cannot remove head plug (JCAIRE2)
NO - the sensor between #1 and #3 on my 88 doesn't turn the main cooling fan on, it turns on the other optional fan that is in front of the radiator .
Easy way to tell is to discoonect the plug from the sensor, turn on ignition and ground the plug to the engine and see which fan runs.
From my research I found that the ECM turns on the main fan at a set temp (way too high I reckon), getting info from another sensor at the front.
Hope this helps
S'nut
Easy way to tell is to discoonect the plug from the sensor, turn on ignition and ground the plug to the engine and see which fan runs.
From my research I found that the ECM turns on the main fan at a set temp (way too high I reckon), getting info from another sensor at the front.
Hope this helps
S'nut
Le Mans Master
Joined: Jan 2003
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From: Santa Maria CA
Re: (scorp508)
88 will have the fan switch between cylinders #1 & #3.
p.s.
To identify.
Coolant Temp Sendor for Cluster is a 1 pring flat blade connector.
Fan Swtich is a push on round single wire connector.
p.s.
To identify.
Coolant Temp Sendor for Cluster is a 1 pring flat blade connector.
Fan Swtich is a push on round single wire connector.
Guys with only 1 fan have a pipe plug instead of a temp switch between the #1 and #3 spark plug threaded on the cylinder head. I had to grind down a pipe plug socket to an 8mm size to fit the square hole in the plug to remove it.
Guys with 2 fans simply remove your old switch and install the new one.
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From: Hudson OH
Re: (86PACER)
Well there is a switch between the #1 and #3 cylinders...so I suppose that's it. There is also a switch by the dipstick. Really makes me wonder why they needed so many GD coolant temperature sensors...there has to be at least 4.
PB Blaster can be bought at any autoparts chain. I use Autozone.
[Modified by brock71, 3:54 PM 2/21/2004]
PB Blaster can be bought at any autoparts chain. I use Autozone.
[Modified by brock71, 3:54 PM 2/21/2004]
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Re: (brock71)
Well there is a switch between the #1 and #3 cylinders...so I suppose that's it. There is also a switch by the dipstick.
GM swapped the location of the temperature guage sending unit with the fan switch, several times.
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