Does anyone know where I can access a list of trouble codes for a 95 Dodge Cummins?
I'm getting a #32 trouble code.
Thanks for the help> :VHOT:
PSiemens
12-28-2004, 08:30 PM
I have the factory manual. There is no code 32 for a diesel, but there is for a gas.
Code 32 (gas):
A)- is an EGR solenoid circuit
B)- EGR system failure.
A)- Description: an open or shorted condition detected in the EGR solenoid circuit
B)- Description: a mechanical problem found in EGR system (vacuum line leak, defective EGR valve, plugged EGR tube, etc.,)
What is the truck doing? There are codes 42, 23, 24 for a diesel.
Phil
DLDJR
12-29-2004, 10:20 AM
Thanks for the reply.
The truck just started randomly running rough, and when you let off of the throttle the engine will race and then die. If you try to start the engine with out turning the key completly to the off position it will still run very rough. When you turn the key to the off position and then start, it will run fine for a while, sometimes 5 minutes, somtimes 2 hours. I have installed a fuel pressure gage in the supply line to the injection pump. The reading pulsates so excessively, you can not read it. It rapidly jumps from around 5 psi to around 40 psi, but to get an accurate reading is not going to happen.
PSiemens
12-29-2004, 07:08 PM
According to the FSM, min fuel pressure should be 25 psi taken at "fuel inlet line". This line comes up from the fuel transfer pump (lift pump) up into the filter head. On top of the line is the fuel drain manifold line. There is also a volume test for the lift pump. Crank motor over for 30 seconds and measure fuel volume obtained. Don't start the motor doing this test, let the batteries do the work. You have to pull out the shutdown relay on the firewall. The engine mite run for a few seconds due to fuel in the inj pump.
rpm ounces of diesel fuel pumped
200 10.2
225 11.9
250 12.7
275 13.6
300 15.3
400 20.3
The pump must meet or exceed those volumes. Have you checked out the condition of the supply and return lines? They will dry rot causing grief. The other culprit is the overflow valve. It is located at a banjo fitting on the inj pump. You can disasamble most o/f valves. The spring inside should measure 1/2 inch. As a temp fix, stretch the spring to 1/2 inch or a bit more.
