RShrimp
OBS Enthusiast
1990 C1500 and my speedometer works intermittently or jumps. Seems to work more often when the truck is fully warmed up. I get a CEL code 24 when it doesn't work. That tells me that the issue is with the VSS or the connection from the VSS to the ECM.
I replaced the VSS (Better know in the autoparts industry as a ABS sensor), as it was leaking there anyway. I tapped it in with a stick to make sure it was fully seated. At least the leak is fixed. The speedo works more often now but still not 100%. Do the tume rings go bad? I really dont see how? Pretty sure I am working in the right area as the symptom did change. It used to work 20% and now it works 60% of the time but still mainly after warm up. Any ideas on how to proceed?
I replaced the VSS (Better know in the autoparts industry as a ABS sensor), as it was leaking there anyway. I tapped it in with a stick to make sure it was fully seated. At least the leak is fixed. The speedo works more often now but still not 100%. Do the tume rings go bad? I really dont see how? Pretty sure I am working in the right area as the symptom did change. It used to work 20% and now it works 60% of the time but still mainly after warm up. Any ideas on how to proceed?