 Temp sensor, Out of production? |
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| Tjmrfe |
 May 7 2017, 07:15 AM
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#1
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NON IMPEDING RATIONE COGITATIONIS  Group: Members Posts: 132 Joined: 10-April 15 From: Cornwall on Hudson, New York Member No.: 18,612 Region Association: North East States  |
Hello guys,
My 75' 1.8 needs a new oil temperature sender...so I try AA, they only list a different size, (shorter rod) & it's a 300 degrees unit, mine clearly says 200 degrees. It's a VDO So I look @ Pelican and all the other sites, including eBay (IMG:style_emoticons/default/mad.gif) and all are 300's which seem to be for the 6.... So, any ideas where I might find one? Or why all the ones I do find are 300's, do they not make them? I believe my gauge is set for 200. It's the VDO, non-numerical style with the red zone... Thanks... |
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| McMark |
May 7 2017, 07:51 AM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I've never seen one go bad. Try a different used one. Also make sure there's an electrical path for the sensor to ground. If you refinished the mounting plate, you may have eliminated the ground path.
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| Tjmrfe |
May 7 2017, 09:25 AM
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#3
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NON IMPEDING RATIONE COGITATIONIS Group: Members Posts: 132 Joined: 10-April 15 From: Cornwall on Hudson, New York Member No.: 18,612 Region Association: North East States |
QUOTE(McMark @ May 7 2017, 05:51 AM)  I've never seen one go bad. Try a different used one. Also make sure there's an electrical path for the sensor to ground. If you refinished the mounting plate, you may have eliminated the ground path. Mmm, thanks, what happens is, I run car for 60 seconds, it creeps up, and then pegs to full hot position and motor is most certainly not that hot... And, I've cleaned plate and surrounding area...so, maybe my ground will be better now? thanks, I'll reinstall and see what happens...appreciate your input. |
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| Spoke |
May 7 2017, 10:43 AM
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#4
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Jerry Group: Members Posts: 6,989 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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QUOTE(Tjmrfe @ May 7 2017, 11:25 AM) Mmm, thanks, what happens is, I run car for 60 seconds, it creeps up, and then pegs to full hot position and motor is most certainly not that hot... Does the needle creep up smoothly part way then instantaneously jump to full scale? Or does it creep smoothly all the way up to full hot position? |
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| Tjmrfe |
May 8 2017, 06:41 AM
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#5
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NON IMPEDING RATIONE COGITATIONIS Group: Members Posts: 132 Joined: 10-April 15 From: Cornwall on Hudson, New York Member No.: 18,612 Region Association: North East States |
QUOTE(Spoke @ May 7 2017, 08:43 AM) QUOTE(Tjmrfe @ May 7 2017, 11:25 AM) Mmm, thanks, what happens is, I run car for 60 seconds, it creeps up, and then pegs to full hot position and motor is most certainly not that hot... Does the needle creep up smoothly part way then instantaneously jump to full scale? Or does it creep smoothly all the way up to full hot position? Thanks, it goes in increments, as if it were in segments. When I turn off the key, it stays in the fully hot position also.... I looked at gauge thinking there might be a bind. It moves freely. After I finish reinstalling the old sender, I'll check wiring, and consider replacing gauge. |
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| Spoke |
May 9 2017, 05:06 AM
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#6
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Jerry Group: Members Posts: 6,989 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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QUOTE(Tjmrfe @ May 8 2017, 08:41 AM) After I finish reinstalling the old sender, I'll check wiring, and consider replacing gauge. If I understand this correctly, you're going to dump all the oil out of the engine, remove the taco plate with the sender, replace the sender, replace the taco plate, and refill with oil? Why not just disconnect the wire to the installed sender, connect the old sender, use a jumper wire to ground the old sender, then heat the old sender with a heat gun/small torch and see if the gauge operates the same. |
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| 914Sixer |
May 9 2017, 05:34 AM
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#7
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914 Guru Group: Members Posts: 8,897 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Very rare that the sensor is bad. Wire from sender is bad 99% of the time. Run a new jumper wire from the sender to the plug under the battery tray. Your trouble should go away.
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| Tjmrfe |
May 9 2017, 06:22 AM
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#8
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NON IMPEDING RATIONE COGITATIONIS Group: Members Posts: 132 Joined: 10-April 15 From: Cornwall on Hudson, New York Member No.: 18,612 Region Association: North East States |
QUOTE(914Sixer @ May 9 2017, 03:34 AM) Very rare that the sensor is bad. Wire from sender is bad 99% of the time. Run a new jumper wire from the sender to the plug under the battery tray. Your trouble should go away. Sounds like a plan, general consensus is, these things don't go... Got the day off. And I'm running a temp. Thank you for the input.... |
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