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Re: 3126 cranks but will not start

the code i ot is ecu140

New member

Re: 3126 cranks but will not start

thanks for the help

Super Contributor

Re: 3126 cranks but will not start

Exhaust from the intake indicates leaking valves or a valve timing problem (camshaft out of time). Leaking valves on one cylinder would not prevent an engine from starting.
Contributor FMS
Contributor

Re: 3126 cranks but will not start

Still cant get this thing to run. I noticed this morning there is exhaust coming from the Air inatke, everything seems to be running right though. It just will not bust off no oil leaking fuel seems to be good same with the oil pressures. Any Ideas

Super Contributor

Re: 3126 cranks but will not start

Installation of the jumper tubes is critical. You must follow the installation procedure exactly. These tubes cannot leak as they must withstand over 4000 psi oil pressure! The 164-11 fault code indicates a mechanical problem with the HEUI system.
Contributor FMS
Contributor

Re: 3126 cranks but will not start

hey did find a leak number 6 injector tube when we changed the injector I must have turned in the cone washer on top of the injector. so I borrowed on from another tractor. it is now trying to crank but still nothing the iap pressure was 1300 to 1500 psi which is good with no diag coming up. we are fixing to be getting off and i will bleed the air in the AM. still have 74 code injector 6 current high and th 164-11 coming up though. I am gettting smoke but it looks to be coming through the intake any reason for this some out of exhaust too. And that bad fuel knock sounds like is back, i am guessing it is still not getting enough fuel. thanks for the help. 

Contributor FMS
Contributor

Re: 3126 cranks but will not start

The pump is new and I have had the valve cover off all morning looking for leaks. Should it be spraying or barely seeping or would it matter. The gauges we tried are crapp so I will try to round up a new gauge. With the budget crisis going on they want let us spend any money right now. I am going to need batteries before long lol

Super Contributor

Re: 3126 cranks but will not start

Either the HEUI pump has no output pressure or you have a massive leak. Remove the valve cover and crank the engine to check for a broken/leaking jumper tube. If there are no broken tubes or major oil leaks, deadhead the HEUI pump to check pressure. Should be over 3500 PSI.
Contributor FMS
Contributor

Re: 3126 cranks but will not start

It goes from about 160-210

Injection actuation pressure shows 242 then goes to DIAG

Desired actuation pressure goes straight to 1450 psi

injection actuation output is 100%

The engine serial is 4cw00463 just in case.

Super Contributor

Re: 3126 cranks but will not start

Does ET show engine speed when cranking? What is the injection actuation pressure when cranking? 750 psi is needed to start.