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oldebondo · 11-03-2015, 11:25 PM

I have an '88 GMC R2500, 350 TBI and a Muncie 465 3-speed w/ Granny Gear. I am having the same Code 24 - VSS. My spedometer works so I know it's not the cable. I don't believe there is a VSS on a standard transmission. I've heard it could be corrosion on the terminals of the VSS Buffer Module but I checked that and if they were bad, they should be good now. Still throwing the code. I am wondering if you figured it out and maybe you could share.

BTW - sweet truck!

11-03-2015, 11:25 PM	#2
oldebondo Registered User Join Date: Aug 2010 Location: Longmont, CO Posts: 6	Re: 1989 one ton (old body style) VSS code I have an '88 GMC R2500, 350 TBI and a Muncie 465 3-speed w/ Granny Gear. I am having the same Code 24 - VSS. My spedometer works so I know it's not the cable. I don't believe there is a VSS on a standard transmission. I've heard it could be corrosion on the terminals of the VSS Buffer Module but I checked that and if they were bad, they should be good now. Still throwing the code. I am wondering if you figured it out and maybe you could share. BTW - sweet truck!