which sensor is this?
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Joined: Dec 2001
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From: wichita falls texas
which sensor is this?
if your on the drivers side looking at the front two sparkplugs it is inbetween the two spark plugs screwed into the block? please help thank you.on a L98
[Modified by vettlesstintguy, 2:19 PM 3/7/2002]
[Modified by vettlesstintguy, 2:30 PM 3/7/2002]
[Modified by vettlesstintguy, 2:19 PM 3/7/2002]
[Modified by vettlesstintguy, 2:30 PM 3/7/2002]
Thread Starter
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From: wichita falls texas
Re: which sensor is this? (GRX)
since the fans are wired to run constant, i wonder if i need this, i just noticed it was undone, actually looks like the plastic connector is broke and i wasnt sure if i did it cleaning or if it was done on purpose. hmmmmmmm
Le Mans Master
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From: And on the fifth day, subpoenas were served to Obama senior staff
Re: which sensor is this? (vettlesstintguy)
That is the water temp SWITCH! It's for the aux fan in front of the condensor when so equiped. Stock switch comes on around 228* or so.
The switch provided ground for the aux fan relay.
Many replace the switch with a much lower temp unit, like 200*. I asked CM to program a chip to turn the main fan on at around 195*. The combo works great. Much better than leaving the fans on all the time; which will burn out the fans and could actually reduce cooling at speed.
Pete
The switch provided ground for the aux fan relay.
Many replace the switch with a much lower temp unit, like 200*. I asked CM to program a chip to turn the main fan on at around 195*. The combo works great. Much better than leaving the fans on all the time; which will burn out the fans and could actually reduce cooling at speed.
Pete
Racer
Joined: Jan 2002
Posts: 341
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From: Cave Creek AZ
Re: which sensor is this? (Bluevette85)
If it's like my '89 Bird then Bluevette85 and I agree. The driver's side sensor, between 1 & 3, is the water temperature. You should fix this since the computer needs that data. On the passenger side between 6 & 8 is the fan switch.
One fan is operated by the computer. You can't change the turn on temperature for this one unless you change the chip.
The second fan is controlled by the passenger side sensor. You can buy a replacement sensor that will turn on at a lower temperature. It's an easy replacement unless you have headers. I had a problem with the replacement sensor being longer than the stock one. So the connector came in contact with the header. Had to do some plumbing. :)
One fan is operated by the computer. You can't change the turn on temperature for this one unless you change the chip.
The second fan is controlled by the passenger side sensor. You can buy a replacement sensor that will turn on at a lower temperature. It's an easy replacement unless you have headers. I had a problem with the replacement sensor being longer than the stock one. So the connector came in contact with the header. Had to do some plumbing. :)
Le Mans Master
Joined: Dec 1999
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From: And on the fifth day, subpoenas were served to Obama senior staff
Re: which sensor is this? (I-FLY-AF)
I-FLY-AF you are right.
Actually I think we settled this a few months back for the L98.
Driver side between #1 and #3 is the temp switch.
Below TB is the ECM temp sensor
Pass side above the starter is the guage temp sensor.
I believe this is correct.
Pete
Actually I think we settled this a few months back for the L98.
Driver side between #1 and #3 is the temp switch.
Below TB is the ECM temp sensor
Pass side above the starter is the guage temp sensor.
I believe this is correct.
Pete
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Thread Starter
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From: wichita falls texas
Re: which sensor is this? (PeteL)
i notice the fan relays are grounded for full time operation, thumper told me in the first place so its no supprise, this is a 383 does it need more cooling than a normal L98 am i better off leaving it the way it is fans on all the time or should i configure it back to factory and get a lower temp fan switch and replace the broken engine coolant switch? anybody?
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From: wichita falls texas
Re: which sensor is this? (vettlesstintguy)
is the engine coolant sensor supposed to have plastic on the end of it cuz all im seeing is a metal shaft sticking out, i`m thinking thats why the connector fell off, the connector with the wire on it looks fine, somehow it broke it looks like, what can yall tell me?
Drifting
Joined: Nov 2001
Posts: 1,783
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From: Latham NY
Re: which sensor is this? (vettlesstintguy)
My temp sensor just has a metal tab.
I replaced my thermostat with a 180deg and bought a 185deg fan switch. You can buy a wiring kit to control both fans or just connect the green wires on the two fan relays. Mine was wired to run all the time but this is unnecessary. The temp switch on the 85 only controls the aux fan. The main fan is controlled by the ECM. By installing a lower fan temp switch and connecting the green relay wires, both fans work off the switch and the fan will also cycle properly during A/C use.
P.S. One reason people hook-up the fans for continuous use is because the ECM is fried and the fans never come on. This was the problem with mine. Bought a remanufacuted one at Autozone.
I replaced my thermostat with a 180deg and bought a 185deg fan switch. You can buy a wiring kit to control both fans or just connect the green wires on the two fan relays. Mine was wired to run all the time but this is unnecessary. The temp switch on the 85 only controls the aux fan. The main fan is controlled by the ECM. By installing a lower fan temp switch and connecting the green relay wires, both fans work off the switch and the fan will also cycle properly during A/C use.
P.S. One reason people hook-up the fans for continuous use is because the ECM is fried and the fans never come on. This was the problem with mine. Bought a remanufacuted one at Autozone.
Melting Slicks
Joined: Oct 2000
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From: Heidelberg PA
Cruise-In V Veteran
Re: which sensor is this? (PeteL)
I disagree with this on an 85 - L98.
"Pass side above the starter is the guage temp sensor"
I am looking at the manual and this is the Cooling Fan Temp Switch.
Jim
"Pass side above the starter is the guage temp sensor"
I am looking at the manual and this is the Cooling Fan Temp Switch.
Jim