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  #1  
Old 03-26-2013, 03:05 PM
Diesel truck tech
 
Join Date: Mar 2013
Location: Stockton Ca
Posts: 92
Low coolant is on

The low coolant light is on but the recovery tank is full.
How do I trouble shoot the low coolant sensor?

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  #2  
Old 03-26-2013, 03:18 PM
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In all likelihood just need to replace the sensor...can be purchased for under $10.
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  #3  
Old 03-26-2013, 03:32 PM
Diesel truck tech
 
Join Date: Mar 2013
Location: Stockton Ca
Posts: 92
I know the resivor has a leak
Does a new resivor come with the sensor?
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'85 F250 6.9L diesel 2wd XL XC LB Centurion, Gone
'95 Mercedes E 300 Diesel W124.131 with a OM606.910 and just over 200k on the clock, needs top end engine work and a transmission.
2000 S500 W220 with a 5.0L V8 gas power.
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  #4  
Old 03-27-2013, 03:16 AM
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Answer

Quote:
Originally Posted by Stuiie View Post
I know the reservoir has a leak
Does a new reservoir come with the sensor?
NO.

Each part is sold separately.

.
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  #5  
Old 03-27-2013, 10:54 AM
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Troubleshooting

1) Remove the connector, the warning light should goes off. If it does then it is the sensor not breaking when tank is full.

2) If the light stays on then it is something else. May the wiring

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