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)
intake,head gasket problem on 2001 Cadillac DeVille DTS
by candicejoe in Paris, KY on November 04, 2010
ANSWER by ZeeTech on November 04, 2010
The codes has nothing to do with blown head gasket. The intake leak could cause the gas mileage problem. How did they come to the conclusion that the head gasket blown??? Did the performed a leak down test, is the car burns coolant? I'd get it diagnosed by an independent repair shop and see what they say. Don't forget, the dealer wants to sell you a car. Zee
IS THERE A WAY TO STOP THE LEAK WITHOUT REPLACING THE HEAD GASKET.IT IS A NORTH STAR ENGINE
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...
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...