how do I check if the catelatic converter is bad in a oldsmobile bravada

Asked by Apr 22, 2015 at 09:08 PM about the 2000 Oldsmobile Bravada 4 Dr STD AWD SUV

Question type: Maintenance & Repair

the truck is idling real high when driving and the oil pressure goes down and doesn't want to go past 10 miles an hour then when I got into driveway it don't want to stay running like its plugged up or something

1 Answer

20,725

Oil pressure will have nothing to do with a clogged cat. Be careful but start it up and rev it while in park. You shouldn't be able to get very high rpms if it's clogged. If you get to 4000 then it's fine. Don't go over 4000 rpm. Also if you have someone else there the exhaust should be really hot, as in you can't put your hand several inches from the tailpipe. Be careful with this part too as it will be very hot if it's clogged.

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