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Vanagonoob
Samba Member
Joined: June 06, 2023
Posts: 7
Location: Seattle WA
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 Posted: Tue Jun 06, 2023 7:46 pm Post subject: Temp needle not moving |
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Hello new here and in the vanagon wheels . I have a 1990 2.1 GL that the temp gauge needle is not moving . So I知 trying to replace the sensors . I found the location but I see two. I would love to replace both but not sure what is what for .
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VicVan
Samba Member
Joined: July 01, 2015
Posts: 1845
Location: Vancouver Island, BC
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| Posted: Tue Jun 06, 2023 11:09 pm Post subject: Re: Temp needle not moving |
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Hi and welcome !
How do you know it's the sensor? Could be a problem with the instrument cluster. Is your fuel gauge working correctly?
_________________
'90 Little Blue Truck, 2WD auto, FAS GenV 2.0 NA (AVH) |
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crazyvwvanman
Samba Member
Joined: January 28, 2008
Posts: 9935
Location: Orbiting San Diego
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| Posted: Wed Jun 07, 2023 12:19 am Post subject: Re: Temp needle not moving |
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It looks like someone may have reversed the 2 wiring connectors.
The temp senders are color coded and so are the wiring connectors.
The gauge sender is BLACK and the wiring connector for it is also BLACK.
The Fuel Injection temp sender is BLUE and the wiring connector for it is also BLUE.
The 2 senders have very different OHM ranges and won't work correctly if mixed up.
Mark
| Vanagonoob wrote: |
Hello new here and in the vanagon wheels . I have a 1990 2.1 GL that the temp gauge needle is not moving . So I知 trying to replace the sensors . I found the location but I see two. I would love to replace both but not sure what is what for.
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2561
Location: Philly, mang
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| Posted: Wed Jun 07, 2023 7:53 am Post subject: Re: Temp needle not moving |
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| Vanagonoob wrote: |
Hello new here and in the vanagon wheels . I have a 1990 2.1 GL that the temp gauge needle is not moving . So I知 trying to replace the sensors . I found the location but I see two. I would love to replace both but not sure what is what for .
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this forum is great and full of helpful members. with that said...
do you have the Bentley?
https://www.amazon.com/Volkswagen-Vanagon-Repair-Manual-1980/dp/0837616654
have you downloaded and printed the Digifiant Pro-Training Manual?
https://oldbluesblog.com/files/DigifantProTrainingManual_SingleSided.pdf
while this forum is a great resource and we are pretty quick with the help, getting to know your bus and it's various systems will go a long way to having a safe, fun, and reliable bus. the Bentley is a must have item as is the Digifiant Pro-Training Manual.
welcome to the mania, happy bussin!
_________________
1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic
"burnin oil and cookin coils" -- Destructo
BiWerks Design, LLC |
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Vanagonoob
Samba Member
Joined: June 06, 2023
Posts: 7
Location: Seattle WA
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| Posted: Wed Jun 07, 2023 5:05 pm Post subject: Re: Temp needle not moving |
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| crazyvwvanman wrote: |
It looks like someone may have reversed the 2 wiring connectors.
The temp senders are color coded and so are the wiring connectors.
The gauge sender is BLACK and the wiring connector for it is also BLACK.
The Fuel Injection temp sender is BLUE and the wiring connector for it is also BLUE.
The 2 senders have very different OHM ranges and won't work correctly if mixed up.
Mark
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That痴 actually correct I pulled the blue wiring conector and a black sensor came out along some coolant |
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Vanagonoob
Samba Member
Joined: June 06, 2023
Posts: 7
Location: Seattle WA
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| Posted: Wed Jun 07, 2023 7:07 pm Post subject: Re: Temp needle not moving(fixed) |
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**** FIXED you were right I bridged black connector to test if temp needle move and eureka! It痴 alive!!!! So black connector to the left and blue to the right. Thanks a bunch |
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Vanagonoob
Samba Member
Joined: June 06, 2023
Posts: 7
Location: Seattle WA
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| Posted: Wed Jun 07, 2023 7:08 pm Post subject: Re: Temp needle not moving |
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thanks and I already downloaded the one and planing to get the Bentley. |
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Vanagonoob
Samba Member
Joined: June 06, 2023
Posts: 7
Location: Seattle WA
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| Posted: Wed Jun 07, 2023 7:12 pm Post subject: Re: Temp needle not moving |
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| Would like to thanks to all for the great Info. I can believe the sensors still the ones made in Germany . Btw . I noticed lots of movement of coolant in the reservoir. Is that normal ? |
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bobhill8
Samba Member
Joined: June 09, 2017
Posts: 737
Location: MA
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| Posted: Thu Jun 08, 2023 3:48 am Post subject: Re: Temp needle not moving |
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Welcome. Can you try to be more specific about "Movement of coolant in reservoir"? When, how much, which coolant tank, etc? The more detail you give, the easier and more likely the help you will receive.
_________________
1986 Westy
1971 Squareback |
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2561
Location: Philly, mang
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| Posted: Thu Jun 08, 2023 4:53 am Post subject: Re: Temp needle not moving |
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| Vanagonoob wrote: |
| downloaded the one and planing to get the Bentley. |
glad you got it sorted out and it was simply swapping the connections. my gauge failed due to brittle wiring while on a road trip thru New England last year. expect broken wires, poor grounds, and lots of head scratching, but we're here for you.
_________________
1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic
"burnin oil and cookin coils" -- Destructo
BiWerks Design, LLC |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50349
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| Posted: Thu Jun 08, 2023 7:34 pm Post subject: Re: Temp needle not moving |
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| Vanagonoob wrote: |
| Would like to thanks to all for the great Info. I can believe the sensors still the ones made in Germany . Btw . I noticed lots of movement of coolant in the reservoir. Is that normal ? |
There should be a significant movement of coolant through the pressure tank when the engine is running. The tank should be full though so this is usually not all that noticeable. |
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Vanagonoob
Samba Member
Joined: June 06, 2023
Posts: 7
Location: Seattle WA
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| Posted: Fri Jun 09, 2023 5:08 pm Post subject: Re: Temp needle not moving |
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| Wildthings wrote: |
| Vanagonoob wrote: |
| Would like to thanks to all for the great Info. I can believe the sensors still the ones made in Germany . Btw . I noticed lots of movement of coolant in the reservoir. Is that normal ? |
There should be a significant movement of coolant through the pressure tank when the engine is running. The tank should be full though so this is usually not all that noticeable. |
reservoir is not full full. (Normal full) and when I say moement is like mini waves . Kinda shaking a half way full water bottle .
BTW I知 planing to take my 1990 GL 2.1 for an oil change any recommendations . I was thinking 20w 50 |
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Vanagonoob
Samba Member
Joined: June 06, 2023
Posts: 7
Location: Seattle WA
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| Posted: Fri Jun 09, 2023 5:10 pm Post subject: Re: Temp needle not moving |
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| dabaron wrote: |
| Vanagonoob wrote: |
| downloaded the one and planing to get the Bentley. |
glad you got it sorted out and it was simply swapping the connections. my gauge failed due to brittle wiring while on a road trip thru New England last year. expect broken wires, poor grounds, and lots of head scratching, but we're here for you.
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lol. Thank you . I actually have to fix/change some old cabling . You will hear from me soon. |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50349
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| Posted: Fri Jun 09, 2023 5:23 pm Post subject: Re: Temp needle not moving |
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| Vanagonoob wrote: |
| Wildthings wrote: |
| Vanagonoob wrote: |
| Would like to thanks to all for the great Info. I can believe the sensors still the ones made in Germany . Btw . I noticed lots of movement of coolant in the reservoir. Is that normal ? |
There should be a significant movement of coolant through the pressure tank when the engine is running. The tank should be full though so this is usually not all that noticeable. |
reservoir is not full full. (Normal full) and when I say moement is like mini waves . Kinda shaking a half way full water bottle .
BTW I知 planing to take my 1990 GL 2.1 for an oil change any recommendations . I was thinking 20w 50 |
With something besides the OEM setup all bets are off as to what is normal.
As for oil, for years I ran 30wt in the summer and 10w30 in the winter. Today I typically just run 5w40 synthetic year around. So long as you engine is tight there is no reason to run a 20w50. There is an oil pressure spec in the manual, so long as you meet the spec your oil is plenty thick enough. |
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