Why is my cat C15 engine running rough?
We found a dent in a male fuel supply line fitting. The fuel was not leaking out of this fitting but it allowed the engine to suck a small amount of air and was causing the engine to run rough and miss fire.
Why did my C-15 twin turbo engine go bad?
Had an ecm go bad on our 2005 C-15 Twin turbo, cost was about $2100 to replace at dealer and take a look at fuel line that runs behind ECM they will rub computer from vibration and chafe the line and leak, Put some insulation on it after repair.
Is the C-15 engine idled at 1000 rpm?
If you read your manual the c-15 should be idled at 1000 rpm if has to sit longer than 5 min. I have seen this before on a few Mack trucks in Australia.
How often does a cat C15 engine die?
Lately, it’s also been real bad about losing prime, so about one out of ten times I start it up, it loses prime and dies, then I have to use starting fluid to get it started again. I’ve had it in the shop, both Cat and Peterbilt, more than 25 times, every test in the world has been run on it, and no one can figure it out.
What to do if your C15 cat wont start?
Put a wrench on each one and make sure they are tight. Vampire and silver dollar Thank this. Sounds like you may have a leak somewhere between the tanks and the lift pump (suction side). Could be as simple as a loose fuel line fitting. Put a wrench on each one and make sure they are tight.
Where to find air in a cat C15 engine?
If air is entering system, the air will be seen with a site glass at the pump inlet (hook up to a “known good fuel source” if you question it). Air might also be found on the return line to the tank, but be careful as some bubbles in the fuel is normal.
Are there any problems with the C-15 cat?
C-15 Cat Engine Problems. Discussion in ‘ Trucks [ Eighteen Wheelers ] ‘ started by dave_0755, Nov 4, 2010 . I’m hoping someone with knowledge of the C-15 can help.
What kind of engine does a Kenworth W900L have?
Drive a Kenworth W900L with C-15 w/ twin turbo, fired up one morning started missing at idle and through the gears. After changinging fuel filters with no result we put it in shop and found #1 and #2 injectors bad.
Can a C-15 cat engine burn fuel?
It’s not the same as an “E” or the first C15’s (6nz) there is absolutely no power above 1500 and running one there will do nothing but burn fuel. You say it’s getting hot but you never said what the temp is.
What to do if your cat C15 engine is leaking?
Air might also be found on the return line to the tank, but be careful as some bubbles in the fuel is normal. Try pressurizing your fuel supply lines/fittings with shop air and check for leaks with soapy water. No codes or engine light (even intermittently)……. right?