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Posted on Jan 02, 2017
Rule of thumb...unless you get a better answer: look for a couple of wires on a small plate that is in the airflow of the fan on the heater/ac unit. The resistor pack is always air cooled by the fan.
Posted on Nov 11, 2008
If it's the same air valve that releases the parking brake then replace it so the brakes won't drag because of low air pressure. Air is APPLIED to release the brake so if the system air pressure starts to go low the parking brake will start to apply. This will eventually cause the brake drum to overheat and possibly start a tire fire.
Posted on Jan 14, 2014
ether bad gauge or oil pump went out check oil oil pressure sending unite with pressure gauge if pressure bad sending unit if no pressure there you are in trouble and its going to cost a lot of money to put a new oil pump in it might be covered under warranty it depends on the warranty if they replace the pump or not i would check warranty good luck
Posted on Dec 17, 2014
have a turbo boost pressure test done under load on a chassis dyno
under load the boost should be right up
check for leaks in the intercooler hose fittings or cracks in the intercooler
black smoke under load indicates a faulty turbo or turbo air leaks.
Posted on May 13, 2015
PeterbiltThere will be times when you need to take this manual out of your. Peterbilt. ..... For Model 379 vehicles built on or after 5/1/98 with SRS: Gently pull the turn ... ? 4:36
Jan 28, 2013 - Uploaded by peterbiltatlantic Visit Peterbilt Atlantic online anytime at http://www.Pet... ... 2015Peterbilt 389 Owner Operator Cummins 550 18 Speed 23 Gauges21 switches ...
Posted on Sep 04, 2015
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