@thebuiltcmax.creations: 455k miles on the LML and the CP4 finally let go. @Exergy Performance fuel system saver caught all the debris, new pump and we’re on the road. #fyp #automotive #CarMechanicTikTokContest #diesel #mechanic

TheBuiltCmax
TheBuiltCmax
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Region: US
Saturday 05 September 2026 02:30:11 GMT
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lane_morgan1
lane_morgan1 :
Cp4s will always be junk
2026-09-05 13:30:07
0
marron_repairing
Marron repairing :
cp4 is like the honey badger they dont give a crap . seen them fail at 30k miles seen the last one orbit around the moon . theres no telling
2026-09-05 03:01:07
46
bluecollarscrewup
John D. :
cp4 are not all bad its the hp4 in the l5p that are complete garbage
2026-09-05 03:40:46
7
durascrap6.6
durascrap6.6 :
Cp4s on fords are for some reason absolutely horrible, I’ve seen well over 100 fords in the shop for a blown cp4 in the span of 2 years and I’ve only MAYBE 2 lml’s in the shop for the same issue
2026-09-05 02:52:14
52
paulschoen559
paulschoen559 :
Finally someone has my view of the cp4!
2026-09-05 13:14:38
0
bigblacklml
Colby wren :
I wouldn’t go as far as to say cp4 good but I was definetly happy with mine it did just fine but to get over 5-550 you need to go cp3
2026-09-05 13:11:29
0
dalton.93
Dylan :
Hey what are your thoughts on the crankshafts on the LML? Just out of curiosity. im always willing to learn since I have a LML. Thanks, love the content!
2026-09-05 10:49:19
0
garrett.nantz
️Garrett Nantz :
cp4's aren't bad but I've had one go out on me I've never had a cp3 go bad
2026-09-05 07:33:39
2
ramiromasso
Ramiro Masso :
So is doing a cp3 on them bad? Don’t tell me that I just got the cp3 😫
2026-09-05 12:53:15
0
jared._williams
J W :
Should I cp3 swap my L5p?
2026-09-05 03:35:35
2
blackcherrylmm
Alec church :
Looking at buying a 2016 lml but am absolutely terrified I had a 2008 lml duramax snap a crank at 128k miles is he’s on a stock engine ? How can I make it so that I never have to worry about breaking a crank in it ?
2026-09-05 06:02:58
0
jacksonstarkey07
Jackson Starkey :
Is cp4 bad? No (mine has 230k) is cp3 more reliable? Yes, does cp3 put out less fuel pressure? Yes
2026-09-05 07:12:15
0
owen_gibbs
OG performance :
My buddy’s dad has an lml that hasn’t been opened with 880k km. Buddy beats it down the highway everyday
2026-09-05 04:18:09
1
nick_woods_123
nick woods :
CP4 out performs and out lasts the CP3 but no one is ready to hear that
2026-09-05 02:55:52
10
moffinator04
Moffinator04 :
Does the truck have a fass or air dog? Or just stock stuff to the cp4?
2026-09-05 03:21:04
5
andrewsperri
Andrew :
So I shouldn’t spend 5k and cp3 swap? 200k original cp4 always use additive
2026-09-05 03:52:59
3
dalezadventurez
Dale’z :
How do you know that it actually stopped the metal going back to the rest of the fuel system ? just wondering
2026-09-05 04:19:09
0
lynch_6.0
Lynch_6.0 :
Atleast someone agrees with me
2026-09-05 07:19:34
2
brodes6.6
Brody Hill :
So what’s your thoughts on broken cranks
2026-09-05 03:57:20
0
smoky_4.8
smokey4.8 :
if cp4s "arent so bad" then why do medium duty cummins b6.7 still use cp3
2026-09-05 04:47:31
1
that_01_24vcummins
Joseph R Mayo :
I think they’re like a vp44, take care of them they’ll keep going
2026-09-05 12:33:38
1
clutch.dump.garagey2k
Clutch Dump Garage :
No matter what a CP4is a CPr four they will blow up at 70,000 or 400,000 it does not matter. They will blow up whenever they choose to. It’s just a matter of when they’re just a sitting hand grenade.
2026-09-05 03:50:16
0
that.trim.guy2
Anthony :
I had 200k on my cp4 lml... I put in a cp3 and I noticed way less power
2026-09-05 03:34:33
3
cm223.nosam
⃟ :
Cp4 is a Cp4 bubba, so it’s gotta go - you just got lucky on how many miles you got out of it and you know that😂
2026-09-05 04:32:10
1
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