Where is the IAP on a 3126 engine?
Location: The IAP is located on the front left side of the engine and screws into the head just to the right of the HEUI pump. Has a 10″ wire harness with a triangular 3 pin connector. Google “3126 sensor locations” for some clear pictures if in doubt.
Why did my cat 3126 not start up?
The next 3126 did not have the steel oil line to the injector.And also check the return fuel fitting in the rear of the head for metal in it.I have seen metal in them when the engine ran out of fuel and I guess if it was restricted it would not bleed the fuel system. Click to expand…
Is the HEUI pump on a chasis 3126?
Ckm39928. It is a 3126. Not B or E. In a 2002 Freightliner chasis motor home. XC series Mechanic’s Assistant: Anything else you want the Equipment Mechanic to know before I connect you? I would think the 164-2 is a result of pressure fluctuation from the pump.
How does the HEUI pump work on a car?
The HEUI pump takes engine oil at 60-65 psi and amplifies it to 1,200 psi at starting to 4,000 psi relative to the engine demand/load. The IAP sensor feeds back to the ECM indicating that the pressure is at desired pressure called by the ECM.
Is there a problem with my Cat 3126 engine?
Thanks Ed 3126 Cat engine have a 3126 cat engine that will start but only run for a few seconds then check engine light comes on and it dies it is in a 99 gmc 6500 topkick have replaced the heui pump, speed control sensor, cam sensor, fuel filters, oil filters, need to get running asap costing me money
What to do if your 3126 won’t start?
Not at all too techie! After trying everything I could think of or find elsewhere on the web, disconnecting the IAP allowed the 3126 to start immediately, but run just a little ragged. Reconnecting the IAP afterwards, while running, the engine smoothed out and continued to operate normally.