Gas gague not working it's a common problem with the fuel sending units. Intake leaking coolant also a problem sometimes runs into engine causing it to run erratic. The distributor gear wears and cause misfires rough running. EGR getting stuck open cause of carbon makes the vehicle run rough at idle I hope this helps I know it a lot to look at but...
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has been in the shop, they cannot find the problem, we have changed coil, ignition switch, fuel pump, crankshaft sensor, nothing has helped. 2000 Chevy Blazer 4whd, can any one help? also the gas gauge does not work.
we have just changed the distributor also. so many parts replaced...however no one has suggested the intake leaking coolant, will check that out. the vehicle does not run rough at idle, only at around 45 mph, does it start bucking, stalling...backfire...
catalytic converter not the problem ,that was the first thing we did. when the vehicle starts all this and the gauges go haywire...it completely shuts down any computer hooked up to it. mechanic tried several times to get it to give codes when it happened, but always shut down his equipment. any help at this point is very much needed and helpful, we have been dealing with this problem off and on for a year. it doesn't always mess up, it can go a few days, weeks or months. then all the sudden it won't go for nothing.
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