Check coolant light

Tiny
KILO
  • MEMBER
  • 2003 CADILLAC DEVILLE
  • 4.8L
  • V8
  • FWD
  • AUTOMATIC
  • 60,000 MILES
My caddy blew a headgasket I got another motor from my bro new thermostat hoses water pump the new motor goes one level over halfway on temp Gauge but goes right back down and never goes past that my coolant light stays on should I replace the reservoir coolant tank will that help
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Thursday, August 25th, 2016 AT 10:40 PM

3 Replies

Tiny
SATURNTECH9
  • EXPERT
So your low coolant light is on and the coolant bottle is full?If so unplug the level sensor on the bottle and jump the terminals on the connector and see if the light turns off?If it does replace the bottle.
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Thursday, August 25th, 2016 AT 10:43 PM
Tiny
KILO
  • MEMBER
Wiil a bad coolant reserve tank cause the car to overheati
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Thursday, August 25th, 2016 AT 10:47 PM
Tiny
SATURNTECH9
  • EXPERT
No not unless it's leaking coolant and causes a low enough coolant level.I thought it wasn't overheating that the low coolant light was just staying on?
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Thursday, August 25th, 2016 AT 10:58 PM

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