Question about Cars & Trucks
Our 2009 Kenworth T800, the low air pressure buzzer does not sound when the pressure is below 60 psi. The red warning lights are on in each gauge( primary tank and secondary tank). It has a electronic speedo cluster. Is there anyway to test if it is the sensors for each tank or the cluster? Someone told me the module for the buzzer was in the cluster. Any help would be appreciated. Thank you.
Most likley the buzzer itself is bad. I would start there and test it it off the vehicle.
Posted on Nov 26, 2014
Testimonial: "From what I am told the buzzer is in the dash cluster unit and is all one circuit board. It would be crazy to have to replace the whole speedo/tach cluster to have a buzzer."
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Posted on Jan 02, 2017
I brought my RX350 to the dealer for this problem before. They told me to inflate my tires to 36psi for winter time although the recommended pressure is 30 psi
Posted on Jan 18, 2009
I don't think you have anything wrong, I just don't think you have completed the correct drive cycle yet. Some vehicles must be driven in a very specific way before all the monitors will set. Here is the drive cycle that Gm Recommends:
Do not leave the key in prior to the cold start or the heated oxygen sensor diagnostic may not run.
Posted on May 18, 2009
Since you have such a new vehicle you should have a owners manual. The instructions to reset are in the manual. If not you should get one from the dealership, probably for free. That manual will give you other reset procedures you are going to need in the future.
Posted on Oct 20, 2009
The Aurora is a low pressure oil system. The only solution available at this time is to increase the oil weight. I went o straight 30W to solve the idle alarm issue. Some use 20W oil and that works too.
With 20W you will be at 80 to 90psi cold then drop to 20-30psi hot.
I first replaced the oil pressure gauge and it was worse. I put the original back in and it was better. Then went to 30W and all is fine.
Running it that way for a few years now.
Posted on Apr 03, 2010
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