zerophlux Posted March 2, 2005 Report Share Posted March 2, 2005 My speedo is broken. I think. When riding alongside a friend at 55mph, the speedo reads approximately 35mph. The tire size is stock, so thats out. I'm not sure if the speedo is broken, or the VSS. Please help. Thanks, Skylor Williams Quote Link to comment Share on other sites More sharing options...
White93z34 Posted March 2, 2005 Report Share Posted March 2, 2005 i'd start with the VSS, and go from there. Quote Link to comment Share on other sites More sharing options...
JoroCorona Posted March 2, 2005 Report Share Posted March 2, 2005 I agree. My speedo was off by nearly 20 mph on my Buick. I had two bad VSS's. Set of the ABS every time I stopped too. That sucked. Quote Link to comment Share on other sites More sharing options...
SigEpCutlass Posted March 3, 2005 Report Share Posted March 3, 2005 it'd help to know what you drive... Most W-bodys before '96 or '97 i believe had problems with the VSS. I definately think that'd be the place to start. Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted March 3, 2005 Report Share Posted March 3, 2005 I'm going to go against the grain and say it's the cluster, especially if it's an older W-body. Quote Link to comment Share on other sites More sharing options...
joberlee Posted March 3, 2005 Report Share Posted March 3, 2005 Had the same problem in an 89' Regal, turned out to be a bad ECM. Got a bunch of bad SES light codes too though... Quote Link to comment Share on other sites More sharing options...
Canada Posted March 3, 2005 Report Share Posted March 3, 2005 I'd start with the cluster too. The VSS is simply a magnetic pickup that rides against a tone ring in the transmission. Quote Link to comment Share on other sites More sharing options...
zerophlux Posted March 3, 2005 Author Report Share Posted March 3, 2005 Well, thanks for all the input. I think I will be starting with the VSS, being that I can get it for $5 at the local U-Pull-It. They want $17 for the cluster, so I think that I might even try 2 or 3 VSS's since apparently they are known to have problems (and this U-Pull-It has a 30-day money-back garauntee). So basically I can try everything that would causing the problem, and only buy 1 part. Neato . Thanks. Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted March 3, 2005 Report Share Posted March 3, 2005 If it's not the VSS, I think it's more likely to be the ECM than the cluster. Based on my personal experience, ECM is probably most likely of all, especially if this car uses a p/n 1227727 ECM. Quote Link to comment Share on other sites More sharing options...
Schudini Posted March 3, 2005 Report Share Posted March 3, 2005 It's funny how I posted this same problem and got almost no responses :? Except mine is the opposite, 55 shows up as 80. Oh yeah, and all kinds of lights, check gauges, fuel, e-brake. I already put in a new computer and it didn't fix the problem. Will have to try the other suggestions. Quote Link to comment Share on other sites More sharing options...
JoroCorona Posted March 3, 2005 Report Share Posted March 3, 2005 Id expect the cluster to be bad in yours. A VSS cant read faster, only slower then normal. This could be from a bad gap between the Sensor and the reluctor wheel. Chipped Teeth on the reluctor wheel. Bad magnetic pickup. All sorts of fun stuff. Quote Link to comment Share on other sites More sharing options...
Schudini Posted March 4, 2005 Report Share Posted March 4, 2005 Thanks Quote Link to comment Share on other sites More sharing options...
luminator94 Posted March 5, 2005 Report Share Posted March 5, 2005 http://autos.msn.com/research/vip/Reliability.aspx?modelid=478&src=vip http://autos.msn.com/research/vip/Reliability.aspx?modelid=262&src=vip http://autos.msn.com/research/vip/Reliability.aspx?modelid=2462&src=vip http://autos.msn.com/research/vip/Reliability.aspx?modelid=2300&src=vip I say VSS...these are all different year W's... Aaron Quote Link to comment Share on other sites More sharing options...
comptech_69 Posted March 14, 2005 Report Share Posted March 14, 2005 Yeah, I'm having kinda the same problem. My speedo just don't work, period. I upgraded to the z/euro cluster and wired it all up correctly but nothing. When I first got the car it had the same problem. The VSS wire got snipped. When I start up the car the speedo moves with all the guages so I know its wored right, I just dont feel like climbing underneath my car in like 1' of snow to check if my wire broke again. This time around imma solder it. I jsut hope that's the problem Quote Link to comment Share on other sites More sharing options...
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