ClassicOldsmobile.com - View Single Post - Diagnosis Needed

88Drvr · 02-28-2006, 08:47 AM

Thanks for your response. We looked up TSBs on the car and found one that mentioned a blown seal in the plastic upper intake where the EGR valve connects. We rechecked the plugs and realized that the liquid on them could very well be coolant and gas. We removed the upper intake and there was a blown seal. We replaced the upper intake which was available at the local parts store (now comes with a reinforced sleeve where the EGR valve connects), and the guy at the parts store said he had seen dozens of these. That reinforced our diagnosis. Once the upper intake and the fouled plugs were replaced the car ran like a top!

We were lucky that we checked the TSBs or we might have run off half-cocked and replaced things we didn't need to. This lends creedence to your comments to investigate from square one before jumping into fixing the obvious and wasting time and money.

02-28-2006, 08:47 AM	#3 (permalink)
88Drvr Junior Member Join Date: Feb 2006 Posts: 3	Fouled Plugs Issue - Resolved Thanks for your response. We looked up TSBs on the car and found one that mentioned a blown seal in the plastic upper intake where the EGR valve connects. We rechecked the plugs and realized that the liquid on them could very well be coolant and gas. We removed the upper intake and there was a blown seal. We replaced the upper intake which was available at the local parts store (now comes with a reinforced sleeve where the EGR valve connects), and the guy at the parts store said he had seen dozens of these. That reinforced our diagnosis. Once the upper intake and the fouled plugs were replaced the car ran like a top! We were lucky that we checked the TSBs or we might have run off half-cocked and replaced things we didn't need to. This lends creedence to your comments to investigate from square one before jumping into fixing the obvious and wasting time and money.