Why is oil pressure low on my C15 cat engine?
Why is oil pressure low on my C15 cat engine?
Its good you verified the pressure with a manual gauge. Its possible there could have been a faulty sensor. Since the manual gauge reads the same as the sensor, I’m sure the pressure is low. There are three things I would suspect. First is a weak engine oil pump. Second is the pressure relief valve in the oil filter base is open.
Why does my cat fuel pump keep going off?
What Cat realized in late 2009 was the Safety relief valve in the pump was set too low and it was constantly going off resulting in low Fuel pressure and little work for the 233-6742 VALVE GP-CHECK to do.
How to check fuel pressure in a C13 engine?
E. Install a 8t-0855 Pressure Gauge onto a 6v-3990 Coupler . F. Install the 6v-3990 Coupler onto the 110-6349 Fitting As . G. Record the fuel pressure from Cat ET and on the pressure gauge.
What should fuel pressure be on CAT C-15 MXS?
Your pressure is fine at 98 psi at WOT. More than likely your pressure is actually lower than 98 when you are under load. If you want to try shimming the pump to bring it up a tad you can, but yours is fine for now. Every month 400 people find a job with the help of TruckersReport.
What was the problem with my C-15 cat engine?
The check engine light came on and the engine sounded like the jake brakes were engaged. Anyway i took it to a shop and they found that the exhaust manifold gasket was blown and a flex pipe was too. They fixed that and ran an overhead on it while it was apart.
What Cat realized in late 2009 was the Safety relief valve in the pump was set too low and it was constantly going off resulting in low Fuel pressure and little work for the 233-6742 VALVE GP-CHECK to do.
Your pressure is fine at 98 psi at WOT. More than likely your pressure is actually lower than 98 when you are under load. If you want to try shimming the pump to bring it up a tad you can, but yours is fine for now. Every month 400 people find a job with the help of TruckersReport.
What causes fuel pressure to be higher than normal?
A partially Blocked Secondary Fuel filter will record a Higher than normal Fuel pressure due to the inability of the Pump Safety relief valve to bypass enough flow to manage the pressure. (when recorded on the inlet side of the Secondary Filter Head).
