Question about Pontiac Trans Sport
Hi Chelsea, This indicates a problem with the ABS. However, this symptom could indicate a problem with the battery, battery cables, or battery connections.
1. Even if you don't have any apparent starting/charging problems, check out the battery cables to make sure all connections are clean and secure.
2. The next step, if not obvious, is to check the brake pads and shoes to make sure there is no problem with them.
3. If the van tends to "roar" at speed, you may have a wheel bearing problem. This can also throw off the ABS Sensor alignment at the affected wheel, and cause the issue you're describing. The front wheel bearings are supplied as "hub units" and require slightly more tools and knowhow to replace than the standard shade-tree mechanic stuff. Stop by a real parts store, order up the Chilton manual for your van and check it out.
After those 3 items, you may need to have a professional mechanic check it out.
Posted on Jul 26, 2009
As I already knew one of my rear wheel bearings was going, ie lots of noise above 60km, vehicle has 250K KMs, I read my service manual and it indicated most probable one of the bearings reading zero under 5 KM per hr causing full pressure by the ABS to be exerted on the rear brakes. Works fine with the ABS cct breaker pulled. Solid brakes with ABS above 5 km/hr. No ABS light on, do not have an ABS code reader only the basic GM code reader. Vehicle is 1992. Thanks Anyway
Posted on Jul 22, 2008
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Posted on Jan 02, 2017
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