ever since i change my instrustment cluster to 145mph, my left turn signal light on the cluster will stop blinking after awhile, but it will work again the next day, i don't think is the bulb. any help would be appreciated, thank you.

 

look for a circuit breaker in the circuit if there is one there is probably a short somewhere and the wire is getting to hot.
did you put new bulbs in the cluster when you changed it?

 

hey thanks wiseman, i did not change all the blubs, just a few of them and i know i did not change the left turn signal blub. how would you check the circuit itself? thanks again.

 

It could be the turn signal flasher. The one in my '84 Trans Am went bad. Maybe 1984 was a bad year for turn signal flashers!

It would flash and then stop and the turn signal would just stay lit in whichever direction I was turning. If I reached under the dash and gave the flasher unit a tap it would work again a few times before the who process started again.

 

sorry im not really good at explaining how to test things like that a wiring diagram is a must and knowing how to read them is good and a test light sorry thats pretty much all the help i can give without looking at it

 

This is a bit after the fact, but if the original cluster functioned properly, your best bet is to swap only the speedo head.

JamesC

 

whats wrong with the spedo? and thats not how you fix things by just guessing its a part and replacing it thats how you waste time and money you need to find exactely where the problem is and replace or fix that area

 

If the original cluster functioned properly and the new one doesn't, reason would dictate that the new cluster is at fault. If the new cluster's speedo works and the original cluster functioned as designed, put the new speedo into the orginal cluster and ride off into the sun set. (I've sold 8 or 10 clusters and my advice was always to swap the speedo head into the original working cluster--just seems to elevate problems as described.)

JamesC