I have a tripac apu that when it starts in A/C mode. it starts runs fine for about 30 seconds then the A/C compressor will kick on and the engine will struggle for about a minute then run fine. When its struggling it puffes black smoke once it starts running fine the A/C compressor can kick on and off with no problems....
TriPac APU Starts, runs for 30 seconds, then struggles.
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by earnies2, Aug 22, 2021.
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
Is it the older style Tri pac?. Or evolution,
If older style turn throttle screw in to increase rpm about 100 rpm. Will not hurt the unit. It will not struggle as much and A/c compressor will turn a tad faster. Also is air filter clean?.
A/c compressor puts a big strain on unit.
Before anyone says it will hurt the unit. No it won’t thermo king dealers do it all the time on older non evolution APUearnies2 Thanks this. -
earnies2 Thanks this.
-
truckdriver31 Thanks this.
-
truckdriver31 Thanks this.
-
-
The chances are, you have a problem in the fuel supply. Fuel poseibly draining back into the tank. Does your electric lift pump work? Itcstarts clicking about two seconds before the unit starts. -
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.