blew my cp-3 pump today - need info ?

[1965LONEWOLF]

blew the plug off the cp-3 plug today - fuel was going everywhere by the time i limped home - looks like a freeze plug on the side of the cp - 3 pump.

i wasn;t getting on it or getting after it , just driving normal and slowing down to take a exit ramp ,talked to my diesel guy and he said i would need a new pump - go to call the dealership tommorow - HAS THIS HAPPENED TO ANYONE ELSE OUT THERE ? i', just wondering if anyone else had this problem happen to them -

 

[lmills]

Seen it happen quite a few times. usually comes from sticking FCA's and/or high pressure. Iffff you catch it before the pump starts come apart internally, you are OK. However if not trash can be run through the injectors

 

[1965LONEWOLF]

caught it early , just want to know how to avoid it in the future - i hope i can get a new one from the dealer tommorow - just want to know what i can do so it doesn;t happen again ? is there something out there so if the pressure spike at 26000 psi that it won;t let it or some kind of a safty thing i can install ?

 

[lmills]

there is a check ball system built into the pump to help eliminate the problem, but if it does not seat properly, the pressure feeds back into the pump and grenades it.

 

[JCasper]

Very interesting, I have never heard of that before.





What does a new CP3 cost?

 

[1965LONEWOLF]

Hopefully Dealer Is Taking Care Of It - He Said He Would Try To Slide It Threw - I Took Off The Duel Feed Line Also -

 

[jkidd]

the CP3 is pretty cheap compared to a VP-44
A reman is $735. 75
modified 33% is $1400 and 45% more fuel is $1800

 

[JCasper]

the CP3 is pretty cheap compared to a VP-44

A reman is $735. 75

modified 33% is $1400 and 45% more fuel is $1800

Dang that's a ton for a modified pump.



Is that a new modified pump or a reman that's been modified?

 

[jkidd]

Thats industrial Injections list/msrp price. There is also a 230% CP3 that is $2600 IIRC.

 

[JFaulkner]

I had one do the same thing. It was the 2nd CP3 in my dual kit, dmax pump. Pump was totally destroyed internally. I had fuel all over the drivers side engine compartment and 1/2 way up the rear door all the way down the bedside and tailgate. I kinda felt sorry for the next guy at the car wash that day. :-laf



Anyone want to buy a slightly used pump?

 

[JStieger]

I had one do the same thing. It was the 2nd CP3 in my dual kit, dmax pump. Pump was totally destroyed internally. I had fuel all over the drivers side engine compartment and 1/2 way up the rear door all the way down the bedside and tailgate. I kinda felt sorry for the next guy at the car wash that day. :-laf



Anyone want to buy a slightly used pump?

Did you get any shrapnel in the high pressure side of your fuel system?



How old was the DMAX pump?

 

[RMarkey]

Were there any signs of it going, before pop?

I'm still trying to figure out why when I floor it it basically stalls out then comes on strong after a second, like it's not injecting fuel.

 

[JFaulkner]

Did you get any shrapnel in the high pressure side of your fuel system?

How old was the DMAX pump?

Not sure about the shrapnel but everything still runs fine. I figured it was a little late to worry about it after the fact anyway. The pump was used when I got it so I'm not sure on it's age but it's toast now!:-laf

I saw no signs before it went. I just fueled up and drove about 10 miles, smelled fuel so I just thought it was on my hands or clothes. When the smell got worse I got out and looked and there was a LARGE steady stream running out from under the hood. I drove it to a friends shop and swapped pumps and probably lost 10 or 15gal of fuel in about 5 miles, I left a nice trail everywhere I went.

 

[lmills]

Yes it is amazing how wide of a trail it will leave. LOL :-laf