Question about Oldsmobile Custom Cruiser

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I have a 1991 Olds custom cruser that pingsthe motor ping

The motor pings hot and cold I cleaned EGR valve and checked the timing they are OK The motor is a 5 liter What about the controler for the EGR valve or knock senser .Could a bad catalitic converter cause this.

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  • Tyler Mar 26, 2012

    no its a loud knock/ gringing in the motor



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Either your valves are knocking. Your IAC (Idle Air Control valve), or your knock sensor. The only thing is that if your knock sensor is bad it would throw a code. Your caddy could be the problem but again it would throw a code

Posted on Apr 18, 2009


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What to do about a pinging noise when you give it gas ?

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When engin gets hot it starts to **** is the plugs

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1 Answer


Remove the black octane shorting (one time timing ****** adjustment) bar located near the ignition module ( the connector the bar goes into looks like a fuel injector connector), this should stop the ping, make sure the right jumper is removed, if you pull the wrong one the truck will lack power, if you get the right one the ping will stop and you will feel no change, U may loose a little MPG. If you can't locate it the dealer will do it for little or no charge, just tell them you want the octane adjust short5ing bar removed, did many of them on trucks like yours, the 2300 has a pinging issue, they all do, Mazda and the Ford Ranger.

Jul 08, 2008 | 2007 Mazda B2300

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