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
Is the caterpillar 3126cat used for Fire Rescue?
Someone correct me if im wrong but i read where the 3126Cat @ 330 h.p. is mainly for fire/rescue & ambulance use only . Thanks guys! That is the information I was looking for.
How do you troubleshoot a cat engine in a truck?
Start your troubleshooting by grabbing the CAT engine book that came with it. Then use the cruise control switches in the truck to read the codes using the check engine light.
What is Code 39 on IAC cat 3126?
The IAC will flash a code 39 with the cruise, but show up as a 164-11 on the scanner. The cruse flashes will point us in the right direction while troubleshooting,and has helped me and my cat distributor repair my problems over the phone, but it is not the see all the scanner is.
What happens when you hit the brakes on a 2001 cat 3126B?
My 2001 3126B shuts down when I hit the brakes hard. It has done this at 35 MPH and at a coast in the shop. Feels like an electrical/electronic shutdown as it is instantaneous. Does not loose power it just shuts down. Starts right back up and runs fine but don’t give it a hard brake because it will shutdown.
Where is the manual stop button on a cat 3126?
The red button on the right side of the cylinder is the manual stop, btw. Here’s how it looks like on the 3116. I guess it’s neither much different nor far from that placement also in the 3126, but I can’t be positive about that.
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.
Is there any warranty on Cat 3126 cranks?
The diagrams I have seen don’t look exactly like my configuration. No warranty! Any thoughts?
Why is my scanner not connecting to my ECM?
There must be a broken wire somewhere. Usually between the firewall and engine. Dash harness never seem to give grief unless someone scotch locked a qualcomm to it. If you post the engine serial number I can try to give you pin numbers to check on the engine to ohm out with the dash.
What to do if the OBD II scanner doesn’t communicate with the vehicle?
What to do if the OBD II scanner doesn’t communicate with the vehicle. TEST 1: Connect the positive DMM lead to DLC pin 4 and the negative DMM lead to the negative battery terminal, using jumper wires if necessary. Do not connect to the body or chassis ground but to the battery terminal directly.
What kind of injection does a cat 3126 use?
It is an awesome running truck, he changes his own fluids and has never had any down time with it. The 3126 is a slightly larger version of the 3116 (6.6L vs. 7.2L). All the 3116’s that I have ever seen had mechanical injection, most of the 3126’s are the E model, which use HEUI injection.
What kind of power does a Ford 3126E have?
They are both pretty reliable and make good power (up to 330 h.p.). It’s important to keep the valves adjusted in them, and the 3126E’s tend to have oil leaks in the cylinder head from time to time (coming from the high pressure system that operates the injectors) but it’s usually a very easy fix (O-rings or the pressure sensor).
How to count the flashes on Cat 3126?
Count the flashes, they will be two digit numbers, eg. 6 flashes then a pause then 3 flashes would be code 63. there may be several codes, it will flash them all one after another. You usually need to go through this process several times to make sure your getting the codes correct.
What are the symptoms of limp home mode?
The most common symptoms of limp mode are check engine light, reduced engine power, RPM limit, or stuck gear. Here is a more detailed list of the most common symptoms of limp home mode. 1. Check Engine Light The check engine light is the first thing you will notice on your dashboard when the car is in limp mode.
Why does my engine go into limp mode?
The reason for this is that limp mode could be caused by a lot of different engine components in your engine bay. Therefore, the solution for this is to read the trouble code memory with an OBD2 scanner to find the problem before you are replacing any engine parts! Here is a list of different possible causes of limp-mode.
When does DTC put a car in limp mode?
When the engine control module, transmission control module or brake control unit (ABS) detects a problem in the engine, transmission or with the brake system, it will store a trouble code in your DTC memory. If one of the control units decide that the problem is dangerous for the engine or transmission, it will put the car into limp mode.
What causes a no crank no start truck?
If not, there is an electrical problem before the starter. I have an 07 m2 with a no crank no start…I have power everywhere is should be…starter alt power block on the fender well but when I key up the truck I get a beep and no gauge sweep or codes.
What kind of oil does a cat 3126 take?
By the way my engine in Serial# HEP 280486. I tapped into the high pressure oil galley and put a 4000 psi gage in. Had a helper crank the engine while I watched. The pressure started up kind of slow and then quickly headed toward max on the gage.
How does the HEUI work on a Caterpillar 3126 engine?
A HEUI injection system (also found on Ford Power Strokes, as well as other engines) uses a second oil pump to boost oil pressures to 1500+ PSI (I don’t know the maximum) and essentially use the high pressure oil as hydraulic fluid. And the computer would control the high pressure oil which then controlled the injectors.