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.
An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 500 times.
Re: I have a 1991 Olds custom cruser that pingsthe motor...
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
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need. Goodluck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Most pinging ( depending on year/model ) can be caused by improper ignition timing.... low fuel octane...defective EGR valve. If an older model with adjustable ignition timing, have the timing checked. You can also try adding octane boost to your fuel tank or try using premium gasoline. If the EGR valve is not operating correctly, it to can cause higher than normal cylinder temperatures resulting in a ping
EGR valve may be stuck closed allowing pinging . The Knock sensor can also go bad and not retard timing allowing pinging also . Heavy carbon buildup in the combustion chamber can increase compression causing pinging .
if it is overheating , ti will ping. do not drive like this. Low on coolant? why getting hot? or do you just mean at operating temp? If yes, your EGR valve is plugged or not opening. EGR reduces ping on warm engine by reburning exhasut gases.
Sounds like you have high NOx's, caused by high combustion temperatures,which means that the EGR valve is not doing its job. Have the vehicle scanned for codes then do the repairs accordingly. If no codes are found have a Certified Technician check out you EGR valve.
the knock sensor senses knock and sends a signal back to the engine computer to ****** timing and adjust fuel patterns. however the electrical system can only handle so much. the ping is caused by colliding flame fronts inside the engine, the combustion chamber gets too hot and creates a flame front aside from the one created by the spark plug. this can be eliminated by using higher octane gasoline which speeds up burning eliminating the gasolines exposure time to the hot combustion chamber. if this does not work try checking your EGR system, the system pumps idle gas back into the engine to lower combsution temperatures, happy motoring
PS give the car atleast 2 fillups on premium gas before moving to the egr valve give it time to work out the low grade stuff
Well the pinging you hearing could be detonation try premiun fuel or try retarding the timing by a couple of degrees. do not drill out the ports. it won't fix it. don't believe everything you read online please. hope this helps you out!!
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.