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step by step on how to replace them
costs about the same? got an estimate which seems way out in left field.i am nearing the poor house now, this may put me over the edge!!
one day we drive and the heater works fine, next time, nothing.
to clear the diagnostic codes ,can I remove the powertrain control module bat fuse to turn light off. The codes are reading 171 and 174,also eng coolant light coming on ,but not low and no coolant loss.
the check light stays on. Had diagnostic test at GM garage, it coded PO 171 and PO 172; meaning leaking head gaskets and leaking intake manifold. Car never has overheated and have added very little antifreeze. Two other tests run and they both coded PO 171 and PO 174.Noticeable surge with small miss at idle speed.Have 94,000 miles,would like to keep. Any help would be appreciated.
where can I find diagrahm for removing and cleaning an EGR valve on my 2001 cad. dts? Will this help the o2 sensor to function properly?
had diagnostic test run from GM garage;results were code 170/171,intake leaks and head gasket.A second opinion gave different results-oxygen sensors.Service engine light stays on,what to do? Engine has never overheated,and no anti freeze loss. Does have small pulsing noticeable on rpm hand;also poor gas mileage.
had diagnostic test runwith these code results: PO171,PO172 intake leak,intake leak;head gaskets blown.My question-can problem be resolved without major expense. Service manager recommended exchange motor or trade it.I love my car,give me a better senario! Car is getting terrible gas mileage(15.4)engine pulsing somewhat;has not overheated.Give this ol boy some good news(70& retired)