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00:00So we love these jobs when people, they've been to other shops for a couple times.
00:04We're not going to throw them under the bus.
00:05We don't do that here, but we love to figure out what you missed.
00:09So here we go.
00:10Hey, Caden, are we finally getting to this thing?
00:13Yeah.
00:14Holy smoke, it's like a week behind, aren't we?
00:17Yeah, we're a week behind.
00:18So what year is this?
00:21It's a 2017.
00:23What is it?
00:24Nissan Titan with the Cummins.
00:26Uh-huh.
00:27And it has 70,000 on it, and it's making a noise.
00:29Yeah, there's a little noise.
00:30A little noise.
00:31Have we checked the oil yet?
00:32I checked the oil.
00:33You did, and it's up?
00:34It's up on the dipstick.
00:35Why don't you pop the hood while you start it?
00:37Let me listen to it.
00:37All right.
00:40Oh, boy.
00:45Go ahead.
00:57Rev it up a little bit.
00:59Whoa, whoa, whoa.
01:02Easy, buddy.
01:03Easy.
01:06Just bring it up slow to, like, you know, 2,000.
01:09All right.
01:15Okay.
01:16Let it go come down.
01:20Let's just let it warm up a little bit.
01:22I don't hear anything too weird right now.
01:24Nope.
01:28So what kind of noise was he complaining about?
01:32From what I heard, it was kind of a something lower end.
01:35It was just a tiny little squeak slash tick.
01:37It was very slight.
01:39Questioning if it was part of the serpentine belt, or if it was a lower end noise.
01:45Let's let it warm up.
01:47Well, you know, it's kind of cold out here.
01:49I know we're in short sleeves, but it's still been chilly today.
01:52But let's let it warm up, and then let's listen to it.
01:55If it sounds like the engine, you know, the next thing we'll do is, like, cut a filter
01:58open and have a look.
02:00Filter's easy to get to.
02:01Yep.
02:02That's the fuel filter, though, right?
02:04Fuel filter.
02:04Yeah.
02:05Oil filter just down at the bottom.
02:07Yeah.
02:07Still pretty easy.
02:09All right.
02:10Let's rev it up a little bit.
02:11Let's see if it makes any noise.
02:13You've had one of these out before, haven't you?
02:15Yes, I have.
02:34Let's go for a drive.
02:37It gets up and goes pretty good, don't it?
02:48Yeah.
02:48It runs really good.
03:03What's that bat noise?
03:04Did you hear that?
03:05Yep.
03:06What is that?
03:07That's the exhaust.
03:08I know.
03:09I don't think that's...
03:12I know it's the exhaust, dude, but I'm like, what do you think?
03:17I don't think you should be whistling like that, do you?
03:19No.
03:20But it sounds like it's more in the rear.
03:22Is that where it's coming from?
03:23Yeah.
03:23Yeah.
03:23What are you smiling about, dude?
03:25I'm trying to figure this car out.
03:27Oh, it's deleted.
03:29Oh, is it?
03:29Yeah.
03:30So he's got this thing straight piped.
03:31Uh-huh.
03:32No wonder you're giggling, dude.
03:35We're not doing anything wrong here.
03:45Go rub that up a little bit for me.
03:47Let me just do a circ.
03:48Wrap it a little bit.
03:57I hear that turbo.
04:08I mean, the thing's whistling like crazy because of this exhaust.
04:11Sounds like a dang jet engine back here.
04:14But let me call the guy.
04:16I don't hear...
04:17Okay.
04:19You're hearing things, dude.
04:21What's this guy said he has an engine noise?
04:23He thinks it's fuel knock?
04:24Mm-hmm.
04:25Yeah, because it only does it when it's warmed up.
04:28It goes away after it cools down.
04:30I just warmed it up.
04:31I didn't hear any fuel knock.
04:33Interesting.
04:33I'm not getting it like really warmed up.
04:35Yeah.
04:36When he...
04:36And he's got check...
04:37He's had...
04:38Check engine light.
04:38The knock happens when the check engine light.
04:40It turns off.
04:41And what's the code?
04:42Because it ain't got no check engine light on it now.
04:44I haven't scanned it yet for history, but...
04:46Gotcha.
04:47Yeah.
04:47And I do have invoices.
04:48I got two of them.
04:49From the...
04:50Dealer?
04:51Yeah.
04:51From the dealership.
04:52He's taken them back to the dealership multiple occasions.
04:54Things straight piped, dude.
04:55Dealer worked on it?
04:57That's...
04:58We're not telling anybody who it is, dude.
04:59We don't got to go down that road.
05:01But I mean, it's got to...
05:01It's straight piped.
05:02Yeah.
05:03Yes.
05:03And they know and that's why they're...
05:05Do we have them sign a release?
05:06It's signed.
05:07Yes.
05:07100%.
05:07There you go.
05:08Everybody, EPA, you're watching this, got it.
05:10Yep.
05:11My sign...
05:11I had them sign it, so...
05:13Okay.
05:14And I don't exactly remember...
05:15What did the dealers say was wrong with it?
05:17They keep throwing an injector in it.
05:19Ah.
05:19So there was an injector code.
05:21I'm trying to remember the exact number.
05:22Where's this history?
05:23It's in the truck.
05:24It's in the truck.
05:25Jeez.
05:26Apparently, there's history on this thing.
05:28Do you know about the history?
05:30No.
05:30Well, it's in the truck, he said.
05:32Did you not read the ticket?
05:33I didn't read the ticket.
05:34Maybe that's what I should do.
05:35Because if this information...
05:37Here, let me see that now.
05:38Oh, my goodness.
05:40It was the misfires, huh?
05:42So it keeps getting a misfire on injector number five.
05:46We resealed injector number seven.
05:49This thing's been to the dealer twice.
05:51And it's 62,000, 67, so 5,000 miles later.
05:55How many miles are on it now?
05:5675.
05:57Oh, this is...
05:59I love these, man.
06:00I love it.
06:01I love...
06:02You know, life is a competition.
06:04And I like to win.
06:05So when somebody...
06:06How about you, Caden?
06:07You like to win?
06:08Yes.
06:08I love to win.
06:09So we love these jobs when people...
06:11They've been to other shops for a couple times.
06:13We're not going to throw them under the bus.
06:15We don't do that here.
06:16But we love to figure out what you missed.
06:18So here we go.
06:19Let's look at it like that.
06:22Let's look at it like this is a competition.
06:24And I want you to figure out...
06:26Now, it doesn't have a check engine light on now.
06:28Nope.
06:29But let's run some tests.
06:32I'm going to give you...
06:34You're smarter than a whip, dude.
06:35Let me give you like a half hour to kind of look this over.
06:40And that's what we're going to do even before I call the guy.
06:43Okay?
06:44Okay.
06:44May the force be with you, dude.
06:47So first things first,
06:48we've got to make sure there's nothing contaminated in the system.
06:53So I think I'm going to pull the fuel filter first.
06:57And if we don't see anything there,
06:58this does have the CP4 on it.
07:01So I definitely want to pull the quantity valve
07:05to see if there's anything on there.
07:10Any fuel contaminants.
07:18We'll need to drive this to make sure those codes return on those two injectors.
07:32Once they return, that can lead us down a path of is it a circuit code, is it an injector code, or is it a misfire code?
07:37Then we can swap injectors over to a different bank and cylinder and see if it follows, or if it stays on those two holes.
07:44And then we can swap injectors over to a different bank and cylinder and see if it follows, or if it stays on those two holes.
07:58Or if it stays on those two holes.
08:00So, check it out. Can you guess what it is? More cranes.
08:05I need to be moving machines and equipment, you know, machine shop stuff around,
08:12and it makes it safer and a lot easier on my guys.
08:17So, I just bought 80 feet long, 25 feet long, 25 feet long, 25 feet long, 25 feet long, 25 feet long, 25 feet long, 25 feet long, 25 feet long, 25 feet long.
08:35So, apparently I got a Nissan Titan in here that's intermittently making a bad noise.
08:40And they say now it's making the noise. So, let's go check it out.
09:05I got a low pressure fuel light flashing on.
09:08Okay.
09:09And a check engine light, and it's got a mist. Can you hear it?
09:13Yeah.
09:14Yeah, I can hear it. It's going bump, bump. You hear it? Yeah, listen to it. You'll hear it.
09:19You hear it? There, there, there. It's misfired. And when it misfires, it smokes too. Pull the hood, dude.
09:34Yeah, listen. Yeah, there's the noise. It's misfiring.
09:41The guy does have a real problem here.
09:50Now, we had the, this has got a CP4 on it. And we had the filter part and we didn't see anything.
09:56It doesn't sound good. I'm going to turn it off.
10:00Injector circuit open cylinder five and low pressure fuel system.
10:06Well, it would have, if the injector was open, you'd lose.
10:10Well, circuit.
10:11You'd be losing high pressure.
10:13Yeah.
10:14That explains the knocking noise. It's just adding to way too much fuel.
10:18And it's the smoke and the noise. So the next step is, we got to look at that circuit. We got to go in and look at that injector.
10:26Number five again, huh? That's what he's replaced like twice at the dealer.
10:30Yeah.
10:31I doubt if it's a bad injector, dude.
10:33Yeah.
10:34Yeah.
10:35I definitely want to see their fuel system and how it circulates and then pull the tank. Just verify, because it's got a CP4, so.
10:44Yeah. Yeah, I agree.
10:46Could be.
10:47Let me call the guy.
10:48Yeah.
10:49This is like, we've been playing phone tag today, like a serious phone tag game, man. Thanks for finally calling back.
10:56No problem. I work at a mine, so I don't get self-service underground.
11:01Yeah, I can imagine. That's probably kind of hard to get. Does that ever freak you out?
11:05No, I've been in deeper ones before.
11:07I guess once you're in a hole and it's dark and you're underground, you're underground.
11:10Yeah.
11:11Yeah.
11:12Wow. That's cool.
11:14Your Nissan, we finally got it to start making that noise and it's definitely an engine knock from a fuel issue.
11:24Sure.
11:25We also, the check engine light did come on. It is for that number five cylinder.
11:31Okay.
11:32And we also saw the low fuel pressure light come on. Did you see that come on too?
11:37I have not actually ever seen that one come on.
11:39Yeah, we had a message center in the center and it says low fuel pressure.
11:44Which makes sense because if the injector is stuck open, when it knocks, it does make a very nasty sound and you're getting a lot of black smoke out of the tailpipe.
11:55Yeah.
11:56And so that low fuel pressure would be that injector stand open and it would lower the pressure in the rail so it all makes sense.
12:04But here's what we, according to my schematic, cylinder number five is the third hole back on the passenger side of that motor.
12:15This is what I want to make sure of.
12:17That's what I show in my repair manual on that motor identified as cylinder number five.
12:23Third back on the passenger side.
12:25Did the dealer happen to tell you, I know they replaced, you know, you've had it in there multiple times and they just kept throwing an injector at it.
12:32I know they told you cylinder number five, but did they happen to mention it was the drivers or passenger side?
12:37I believe they told me passenger, but that's so long ago I could be wrong.
12:41Well, that's what I show. I just wanted to make sure because sometimes, you know, but they're showing it as the passenger side.
12:47So here's what I, here's where we need to go with this. It's intermittent.
12:50First, when you brought me the truck, I was like, well, it didn't happen.
12:53It didn't happen. I took on a good drive. Never happened.
12:55It can only be a few things.
12:57First thing would be mechanical, you know, it's just, it's got a bad injector.
13:01You know, for some reason there is a possibility.
13:04First injector is bad. Second injector is bad. Third injector is bad.
13:07There is that possibility.
13:09Now you and me and anybody else listening to this is going to go, well, that's kind of rare.
13:13That just can't be. Well, I wish that was true, but it's not.
13:17You know, they can, they can make a batch of bad injectors and put them out for sale.
13:22And they're all, you know, they're not good.
13:24We need to just go in a little more.
13:26I want to check the pigtail, which is the connector at the injector in the harness.
13:31And then if we don't find a problem, I'm going to want to get another injector and put it in there.
13:36And then I'm going to want to send your injector out and have it tested.
13:40It's not going to cost that much more and, and test it.
13:45I honestly, I don't know what else to do to start.
13:49Yeah.
13:50I know, I know you've had a dealer put it, you know, multiple injectors in it and it keeps coming back.
13:54So it probably isn't an injector.
13:57That's why I'm going to really check the, the electrical connector and all that real good.
14:01That's where we got to start.
14:02I wish I had something that made you feel like, oh, they figured it out.
14:06It's, it's, it's a weird thing, man, with the same hole and you've already had it looked at a couple of times.
14:13So with your permission, we're just going to get another injector.
14:17We're going to go ahead and put that in there.
14:20Check our connector, send that injector out for testing and see what kind of results we get on it.
14:27Sounds good.
14:28All right.
14:29We'll be, we'll talk to you sometime next week.
14:31Keep your fingers crossed.
14:32Okay.
14:33Sounds good.
14:34All right.
14:35Thank you very much, man.
14:36Stay safe.
14:37Bye bye.
14:38You know, sometimes we sure like it when we can definitively tell a customer,
14:41Hey, we found what the problem is, especially when they have it, you know,
14:45they've had it to other shops or the dealer multiple times with the same issue.
14:49That's always, you know, it's nice for us.
14:51It makes us feel good, look good.
14:53And the customer sure loves it, but that doesn't always happen.
14:57You know, we don't always have like that, but I think, uh, he understands that.
15:02So we'll, we're going to do what I told him we're going to do.
15:05And, uh, my guess is if we don't find a, we don't have a bad, another injector that's bad,
15:10which it's possible, but gosh, you'd think like by the third or fourth one,
15:14you wouldn't have that problem.
15:15I think we'd probably have a bad pigtail, a connector or a wiring harness issue.
15:19I think that's what's happening.
15:20And it's dropping the signal.
15:26Funny thing is I charged them before, uh, before I left.
15:31Might need new batteries.
15:33One more jump pack.
15:44Hang on.
15:45I'm going to clear the codes.
15:59It has a code stating that there's no, uh, fuel pressure.
16:04So I'm just going to see if I can clear it and make it start.
16:15Oh, there we go.
16:18All right.
16:28All right.
16:29Let's steam clean it off first.
16:30So then we have a clean area that before we put in the injector and then we'll get down to it.
16:48Oh, there we go.
17:10All right.
17:11all right so we got a new injector we're going to replace as well as we're going to do a pigtail
17:28just so there's no bad terminal tension or contact or anything program the injector
17:34and then go for a test drive
17:41there we go
18:11looks pretty shiny
18:14all right with the injector out i'm just going to blow the hole out a little bit and then i'll pop the
18:20new one in
18:21just going to lube up the o-ring a little bit with assembly lube and it should be good to go
18:41okay i found a good spot and i chopped the old pigtail off and then i prepped this one i put my crimps on and then got my heat shrink ready
18:57i like using the traditional crimps instead of the ones that come with it just in tight areas like this where i'm putting it back on the
19:06wiring harness i like doing it this way just because once i heat shrink that it's a lot thinner and a lot easier to maneuver and tape up and it doesn't just look like i did a wire repair there when i tape it up isn't huge and bulky
19:20okay
19:27mr smiley that's why i call you everybody caden's having a baby he he's not having a baby
19:39but he's going to be a father we know it's a boy we know it's a little boy right yes we do
19:47caden that's that's that's so awesome you're going to be such a good dad dude honestly anyway okay this is that one the guy had had it to the dealer a couple times
19:56yep and uh we put a new pigtail on the injector that keeps tripping and failing did you see anything wrong with the old pigtail
20:03let me see it i didn't see anything weird let me check it out you didn't see anything weird nope besides for me twisting with it
20:13yeah you twisted that right okay well you know you wouldn't see anything weird unless you
20:20well if you actually look down in there i'm going to tell you okay tell me what you see different in that
20:27oh yeah the the pins are gone the pins yeah they're smushed down yeah yeah you can't even see them on the one side you can
20:34you can see the pins coming on this side but you can't see the pins on that side yep that's why you want to take a close look dude
20:40condition cause correction confirmed for me that would be a confirmation that um you know that condition
20:45that that pigtail is bad the signal it needed and it was intermittent dude you know thermal expansion
20:51contractional that that that's enough space to cause that problem yeah that's a common issue on Duramax
20:57is they came out with the bullets and i i know there's not many of these but this is the exact same plug on a
21:02Duramax and and what and the plot thickens the plot thickens
21:09okay i didn't know this so tell me this this is the same plug on a Duramax for lb7 and lmm that's the same exact
21:18pay attention folks do you see this guy he's like he's like uh google yeah so for the lb7 and for lmm
21:26that's the same exact injector plug and and there's a technical service pulling on it yeah common issue with
21:33lack of terminal tension and get the heck out of here there you go remember confirmation i'd say that's
21:39even additional confirmation yeah cool man let's go for a drive
21:44don't you love fixing stuff caden yep you're good at it man feels good
21:51you weather tied to those connectors use yeah heat sink yep turn you some heat shrink on it and
21:57wrapped it up real good
21:59runs great man here's what i want just to confirm the whole repair now
22:13mm-hmm i want you to go ahead and uh let's put a hundred miles on it before we ship it back to the
22:19guy okay there's nothing i you know i want to make sure he had it to the dealer twice and they couldn't get it right
22:25yeah i want to make dang sure that we come out smelling like roses dude so put a hundred miles on it make sure it's all good
22:33and then what i would recommend is i would recommend that you know right now there's no other misfires
22:40mm-hmm and always always had a problem with is on that cylinder number five injector
22:44but i would put on the ticket a reminder to him that he could have problems in the future based on that information
22:50that juicy information you gave us about yeah the dermax injector
22:54that way we we cover our butts okay cool dude this thing gets up in boogies man
23:01things pretty quick
23:11another one bites the dust
23:13better
23:25amazing
23:29perfect
23:30it's good
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