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Topic: Service light on (Read 1913 times) previous topic - next topic

Service light on

Hey all,
The service light below the speedometer started coming on when I start my '85. It stays on for a few minutes, then goes off.
Is this the same as the check engine light? Does it store diagnostic codes or does the light have to be on when I hook up the scan tool?
Thanks in advance.
Cornfed85

1985 Thunderbird - 3.8 V6, C5  :ford:  :birdsmily:

Service light on

Reply #1
That light is just a maintenence reminder.
Current: 1986 Thunderbird, 105k 3.8/C5, 2 tone  Midnight Wine/Medium Taupe, wing windows, wire wheel covers.


Former: 1985 Cougar GS 115k Oxford White/Regatta Blue, 5.0, full console, 14" 8 hole aluminum T-Bird rims, Edelbrock valve covers.

Service light on

Reply #2
Oh ok. Thanks
Cornfed85

1985 Thunderbird - 3.8 V6, C5  :ford:  :birdsmily:

Service light on

Reply #3
Quote from: 1985Elan;448237
Hey all,
The service light below the speedometer started coming on when I start my '85. It stays on for a few minutes, then goes off.
Is this the same as the check engine light? Does it store diagnostic codes or does the light have to be on when I hook up the scan tool?
Thanks in advance.
First I have heard of a service light on these cars. Does say "service" on the light or is it maybe "check oil" or "low fuel" or "washer fluid" ?

Service light on

Reply #4
1985-88's with the base, or full digital clusters, comes on every 7500 miles or so.
Current: 1986 Thunderbird, 105k 3.8/C5, 2 tone  Midnight Wine/Medium Taupe, wing windows, wire wheel covers.


Former: 1985 Cougar GS 115k Oxford White/Regatta Blue, 5.0, full console, 14" 8 hole aluminum T-Bird rims, Edelbrock valve covers.

 

Service light on

Reply #5
The service light stays on for a while, it will eventually disappear, but it should stay on continuously, not turn off after a few seconds. I believe you clear it with the trip and trip reset button at the same time. If that doesn't clear it, that's not it.

The service light shows up on the green portion of the speedo. If your getting a yellow light it would be a code.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com