Injectors

[cerberusiam]

readings are the same wheter they are connected or not. Do i need to replace #3 as well. I have one on order but now thinking I should have ordered another.

I would replace 2 and 3 both.

 

[majoranderson]

Injectors are back

Well I sent the two that were ohm testing bad out to DDP for testing. The solenoid on both were bad. They had to wait for some cores to come in so they could swap the solenoids and finish testing the bodies. About a week of waiting some cores came into there shop and they were able to swap solenoids. The bodies tested good and I have the injectors back. Now I just have to find something to occupy the 18 month old long enough to install them. Hopefully they go back in as easiy as they came out.



I know I will need to check valve adjustments. How hard is that? Hopefully I can have the truck running tonight!



Repacing the solenoid was $50/each and testing was $50/each for a total of $200. Much better than replacing the whole injector @ $360/each. Upgraded injectors would be nice but can't justify the bill for parts that are still working.

 

[Prairie Dog]

You mean they don't replace the windings with new? That's scary.

 

[cerberusiam]

You mean they don't replace the windings with new? That's scary.

Yup. Parts shortages suck big time.

 

[Prairie Dog]

In that case I wouldn't do it. I would buy a new injector because I would no faith in those parts. Frankly it makes me lose a little respect for DPP unless they want to give a great warranty on them.

 

[majoranderson]

It was my choice to replace just the solenoids. I could have done the whole thing but at 3x's the cost. I guess it wouldn't be much different than rebuilts, but I was only replacing two not all of them. They did bench test them before sending them back so they should be good for awhile.



What would have caused the solenoid to go bad in 100,000 miles?

 

[cerberusiam]

What would have caused the solenoid to go bad in 100,000 miles?

Cheap parts and less than adequate QC. A lot of these parts were built by new factories in former Soviet Union countries when Bosch moved production facitlites there.

 

[CKelley1]

if you did not mix the valve bridge's up you do not need to readjust valves. i would do it anyways, you are there. use 0. 010 and 0. 020 ignore the 0. 026 on the plate. be very careful of torque on the wire nuts, over torque causes a high failure rate of the solenoid.

 

[kenty]

New discussion - different truck. I have on 03 with 150k tht is smoking bad at idle, have lost abt 2 mpg when twing and some extended crank times on start. The local opinions I am getting seem to point to injectors. The local Cummins Central Power people wont look at it because Dodge has their testing equipment locked out. Any thoughts? Does anyone know of a diesel shop in KC?



Kent

 

[BIGNASTY]

If you replace the injectors with the 50 horse kind like my son did. NOW IT MAKES A DIFFERENCE but when he first had them installed HE GOT CRAP for milage the smile is connected to the right foot and although FUN it was a little expensive to learn to keep you foot out of it.

 

[cerberusiam]

That could still be a bad VC harness. You need to pull the cover and check the injectors individually to rule out the harness. Yes, 2 and 3 have issues.