Hey guys just registered with this site in hopes of finding out what the deal is with my truck. I have an 86 f350 that i just replaced the gps relay and the light comes on no problem. The truck starts great but the gps light continues to flash after its started. Amd apparently the gps were just replaced before i purchased it about a month ago. Any help would be greatly appreciated thanks guys.

 

How long after it is started does the light continue to flash? Does it flash really fast or slowly?

 

Hi thanks for the reply im not sure how long it stays on for because i shut it down once i noticed it wasnt stopping. And its a slow flash im just not sure what it could be so any help would be much appreciated thanks.

 

If they are cycling for 10-20 seconds then that's normal and I think is called after glow. It's just the plugs cycling during the coldest part of warm-up and is part of the system.
I'd start it up and see how long till they stop cycling, but not longer than a minute. If they go a minute something is goofy

 

oh man so happy they only cycled for about 20 secs after start thanks guys a ton and i have a feeling i will be getting alot of use out of this forum for now on.