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garryv84
Samba Member
Joined: August 10, 2010
Posts: 276
Location: Los Angeles
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 Posted: Tue Sep 06, 2011 10:53 am Post subject: blinking temp led light - please help |
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The needle is always in the middle
About once a week the red led light will blink for a few seconds, then go off. But the temp needle did not move up.
When it blinks, I have pulled over right away and check the level in the pressurized tank and it is full with no air in it.
Either its a bad connection, a bad two prong sensor or a bubble in the cooling system?
I have bled the cooling system a long time ago and dont think it is air trapped in the system.
I have replaced the two prong sensor in the pressurized expansion tank.
I have check the temp sensor, grounded the wire and the temp needle raises up in temp and led light blinks. Works like it should.
I am thinking bad connection between the plug and the two prong sensor.
What should I do next? Thanks. |
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r39o
Samba Polizei
Joined: May 18, 2005
Posts: 9800
Location: San Diego
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| Posted: Tue Sep 06, 2011 10:58 am Post subject: |
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Clean the sensor pins that are in the tank.
Replace the little connecotors in the cable to the sender.
Those are the two usual suspects.
Past that, you gonna have to read this from the FAQ:
From section 90 in the Coolant Temperature Gauge subsection:
http://www.thesamba.com/vw/forum/viewtopic.php?t=168239
http://www.thesamba.com/vw/forum/viewtopic.php?t=184096
PS: It seems to always help to look into the FAQ first, hint, hint....
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"Use the SEARCH, Luke" But first visit the Vanagon FAQ!
1990 Multivan EJ 22, Rancho trans 0.82 4th, Small Car front AC, CLKs w/ 215/65-16, homemade big brakes 303mm, Konis, Recaros, etc....
Click to see my ads for Cup holders, Subaru clutch fix and CLK wheels (no wheels currently) |
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Ahwahnee
Samba Member
Joined: June 05, 2010
Posts: 9810
Location: Mt Lemmon, AZ
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| Posted: Tue Sep 06, 2011 11:30 am Post subject: |
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| FWIW - I had one that would intermittently blink that I ultimately traced to a spot where the harness was pinched and the wire was damaged and making intermittent contact. |
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SteelB12
Samba Member
Joined: December 21, 2010
Posts: 591
Location: Central Virginia
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| Posted: Tue Sep 06, 2011 10:23 pm Post subject: |
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| I found something somewhere that said the light will also blink if the coolant mixture was off. Wish I could remember where I found that so I could give you the link. My van blinks sometimes and the needle stays in the middle. I haven't gotten around to trying to fix it yet. |
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VisPacem
Samba Member
Joined: July 15, 2007
Posts: 1143
Location: Las Vegas
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| Posted: Tue Sep 06, 2011 10:37 pm Post subject: |
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Paint it black. It's useless ***TO ME***
Now pilgrims I said : ****** TO ME ****** didn't I ?
So if you are insecure, paranoid, schizo, frenzied into criticism, obsessed with creating vain arguments and desperate to prevail, or are suffering from rabbies..
I SAID **** TO ME**** verstehen ?
_________________
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No Regrets (Nothing to do with Vanagons) |
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Tom Powell
Samba Member
Joined: December 01, 2005
Posts: 4855
Location: Kaneohe
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| Posted: Tue Sep 06, 2011 10:46 pm Post subject: Re: blinking temp led light - please help |
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| garryv84 wrote: |
| ... I am thinking bad connection between the plug and the two prong sensor. ... |
That is where my problem occurred. The female connector was broken on the inside. I got a replacement from Kyle. The same style connector is also used for the brake/clutch fluid reservoir.
Aloha
tp |
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garryv84
Samba Member
Joined: August 10, 2010
Posts: 276
Location: Los Angeles
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| Posted: Wed Sep 07, 2011 6:42 am Post subject: |
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| Who is or where is Kyle? |
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Saguache
Samba Member
Joined: December 28, 2009
Posts: 360
Location: Gunnison, CO
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Tom Powell
Samba Member
Joined: December 01, 2005
Posts: 4855
Location: Kaneohe
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vanis13
Samba Member
Joined: August 15, 2010
Posts: 3099
Location: ABQ NM USA.... Except when not
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| Posted: Wed Sep 07, 2011 7:39 am Post subject: |
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I had a similar issue caused by a bad voltage regulator on the dash. good write up about this fix on http://www.westfalia.org/
PS - it fixed my gas gauge readings as well.
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83.5 Westy with Subaru 2.5, 4 spd manual, center seat, COLD A/C on 134a!, Winter camp heated with an Espar B4 gasoline furnace
www.SuperVanagon.com - some stuff I make |
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