Add Coolant light always on
#1
Newbie
Thread Starter
Join Date: Aug 2004
Location: FL
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Add Coolant light always on
Hey all,
I have an 81 and just recently, the Add Coolant light started to come on about 20 seconds after the engine is started.
I figured it was probably the sensor. I replaced that but the light and chime still come on.
Does anyone know what else can cause the problem?
Thanks,
John
I have an 81 and just recently, the Add Coolant light started to come on about 20 seconds after the engine is started.
I figured it was probably the sensor. I replaced that but the light and chime still come on.
Does anyone know what else can cause the problem?
Thanks,
John
#2
Airflow is my life
Well really stupid question time. Your coolant isnt low right? Its to the top of the radiator yes? Try this, disconnect the sensor (top of the radiator [for the archives]) and ground the harness wire. If the light and buzzer go out, then the sensor is bad.
#3
Newbie
Thread Starter
Join Date: Aug 2004
Location: FL
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Yes - plenty of coolant. I have replaced the sensor and that did not help.
I will try pulling the sensor wire and grounding it to see if that changes anything.
Thanks.
I will try pulling the sensor wire and grounding it to see if that changes anything.
Thanks.
#7
Newbie
Thread Starter
Join Date: Aug 2004
Location: FL
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Took the wire off and grounded it. That did not work. I guess I need to run a new wire and see if that fixes it. Maybe there is a break somewhere.
Thanks for the help,
John
Thanks for the help,
John
Trending Topics
#8
Airflow is my life
Originally Posted by Unsupa
a quick hi-jack here... if the one on top is the add coolant sensor, what's the one on the bottom?
Water temp switch for the emissions computer.
#9
Airflow is my life
Originally Posted by IanS
Another thread jack - is there a way to test the coolant temp sensor? The one that plugs into the coolant pipe right after the thermostat.
Thats for the choke. If the choke is working correctly, then its fine.
#10
Airflow is my life
Originally Posted by JohnConrader
Took the wire off and grounded it. That did not work. I guess I need to run a new wire and see if that fixes it. Maybe there is a break somewhere.
Thanks for the help,
John
Thanks for the help,
John
#11
Lives on the Forum
I once had a problem with the water lines running to the oil cooler (beehive). One of the hoses was kinked and not allowing water to flow correctly. My add coolant light kept coming on until I fixed the issue, even though the coolant levels were fine. Probably not your issue, but I thought I'd throw it out there. Good luck!
Thread
Thread Starter
Forum
Replies
Last Post
RPOdesign
New Member RX-7 Technical
5
08-27-15 11:42 PM