| From | Message |
bash
Dodge Dakota
JOIN HERE
11/08/2006
22:29:40
|
 Subject: 2004 4.7 H.O. CAMS
IP: Logged
Message:
YOU CANNOT JUST PUT HO CAMS IN YOUR 04 4.7 , IT WILL CAUSE
MUTILPLE MISFIRES AND TIMING TO BE OFF. YOU WILL NEED TO
SEND YOUR ECU TO BE PROGRAMMED BY A SPECIALIST, FOUND A
PLACE ON V8DAKOTAS.COM, COST IS 450 DOLLARS, SO REALLLY
THINK ABOUT THIS INSTALL... MECHANIC CHARGE + CAMS + A
TUNED ECU = PROOBABLY OVER 1000 DOLLARS, THERES A REASON
THAT CAMS ARE ONLY AROUND 100, BUT GAINS ARE SIGNIFICANT,
12HP AND 25 TQ. ANY QUESTIONS LET ME KNOW, I JUST DID THIS
INSTALL AND IN PROCESS OF RE INSTALLING STOCK CAMS.
|
You Broke It
Dodge Dakota
JOIN HERE
11/09/2006
00:36:22
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
YOU CANNOT JUST PUT HO CAMS IN YOUR 04 4.7
Yes you can. See here
http://www.paysonarizona.net/MyProjects/ProjectDak/Project_Dakota_HO%20Cams%20Swap.htm
IT WILL CAUSE MUTILPLE MISFIRES AND TIMING TO BE OFF
Not if you pay meticulous attention to the details. If you get in a hurry, yer gonna f*** it up. Of primary importance is proper care of the camshaft target wheel. Also important is not letting any of the rockers slip out of position.
YOU WILL NEED TO SEND YOUR ECU TO BE PROGRAMMED BY A SPECIALIST
2004's have the NGC PCU. Nobody does those yet.
FOUND A PLACE ON V8DAKOTAS.COM
No such animal.
|
Kowalski
GenIII
11/09/2006
07:45:49
|  RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
I agree with "you broke it ". I believe "bash" will find he still has a problem once he goes back to the stock cams as this is much more likely to have to do with a mistake with the swap. Bash - here's a few things to look for -
1. Did you wire tie the timing chains to the sprockets so you would be sure they stayed in the same spot ?
2. Did the cam sensor get knocked around at any time during the installation ?
3. How did you make sure the pins at the front of the cams weren't stressed when you torqued the gears back on ? Many used a large wrench on the bolt at the front of the crank. As this is not accessable due to my plow frame, I found another way is to use strong pliers on the tube secion of the cams. Wiping that alignment pin out will cause exactly the problem you describe.
4. Make sure none of the valve train pieces got knocked loose.
We've seen people make these mistakes during the installation; and any of these are much more likely to be causing the problem you describe. I could just about gaurantee the problem won't be what you think it is. Did you do the install yourself, or have someone else do it ? What makes you think its the PCM - were you aware of these other possibilites ? Enough questions for you ?
Lead, follow, or get out of the way
|
Marv
Dodge Dakota
JOIN HERE
11/09/2006
12:58:39
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
Plus, if he didn't use the special timing chain wedge tool, his tensioners are AFU.
|
Ski
Dodge Dakota
JOIN HERE
11/09/2006
17:13:55
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
Perhaps "bash" is an apt description of how he did the work.
|
Caution
Dodge Dakota
JOIN HERE
11/09/2006
23:40:39
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
I notice he's now selling them in the Performance forum http://www.dodgedakota.net/boards/per/13246.html
I wouldn't recommend buying the cams from this guy unless you see them up close first.
|
Kowalski
GenIII
11/12/2006
08:21:09
|  RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
bash - how'd you make out ?
Figure out your problem yet ?
I think you'll like the cams, once you figure the problem out.
Lead, follow, or get out of the way
|
bash
Dodge Dakota
JOIN HERE
11/14/2006
00:22:27
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
putting stock cams back in, havent finished install, yes used the
wedge tool and followed meticulous attention to the step by
step instructions on this site.....
http://www.reubengathright.com/HOCam_install.htm
will let you know if i still have the problem when stock cams are
back in , mechanic assured everything was fine and that he
marked the sprocket so that there would be no confusion.
only 1 thing that happened.... the map sensor fell apart when
trying to unclip it, so it was replaced during install....
|
GraphiteDak
GenIII
11/14/2006
02:03:01
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
Was the battery disconnected during this? Some people have noted that when the PCM was reset that their trucks would not idle until it relearned for a while.
Hopefully the correct MAP was put back on as well. Installing a 2 BAR or something would wack it for sure...
With just the valve covers removed, you should be able to line up the crank pulley to TDC and compare each cam position to be sure one didn't get thrown off a tooth. Other than that, the cams work fine, should not be any misfire.
It's not like a older Ford 5.0 vs the 5.0 H.O. that used a different firing order!
|
bash
Dodge Dakota
JOIN HERE
11/14/2006
09:37:18
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
did not disconnect battery... and even took to dealer, where one of
the mechanics who has a fuly built dakota said thats what needed
to be done.....
but like i said he marked the sprocket and everything to make sure
there was no way to miss a tooth.....
|
GraphiteDak
GenIII
11/14/2006
10:46:53
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
Unless something DRASTIC changed between a 2003 and a 2004, I can't imagine why the PCM would have to be reprogramed to run with the HO cam.
Really, you should be able to put in about any cam and the engine run. Maybe slightly confused for a while but not like it's misfiring.
I wonder what it could be? You will know if your cam sensor/target wheel is the culprit some how.
I guess when the old ones go back in, y
|
bash
Dodge Dakota
JOIN HERE
11/14/2006
13:54:13
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
yeah exactly thats what my thinking is.... as you know there still
is no programmer released for the 2004 year... which is weird.
just talked to mechanic and read him this entire post and he
checked over everything and said.
my truck ran and started right away with the ho cams, just the
pedal seemed reallly weak when i gave it gas, and threw up 3
codes, 2 of the same code, one said map/ maf correlation issue,
and the other said, multiple/random misfire. I cleared the codes
and started the truck again and same thing happened threw all 3
codes again... so i threw my hands up and had towed to dealer
where i got that piece of advice from a kid with a built dakota
that just happeend to have seen my truck before and was
mechanic there.....
|
bash
Dodge Dakota
JOIN HERE
11/15/2006
09:36:46
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
I just got my truck back last nite, stock cams back in, started
like a charm
EVERYTHING IS PERFECT, ALL BACK TO NORMAL. Cleared the
codes, and then started again, no codes being thrown!
went and put some fresh mobil 1 in, and got a radiator flush,
and my dak is happy as ever.
I had a mechanic do the install and when i told him to put stock
cams in, he went over everything and it was all in correctly.
so as i was saying, who here has an 04 dakota with these cams
in because i think im the only one that posted with an 04
|
You Broke It
Dodge Dakota
JOIN HERE
11/15/2006
09:53:22
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
Well, refer to one of your earlier posts, where you say you used the step by step instructions on this site
http://www.reubengathright.com/HOCam_install.htm
If you had spent some time on his site, you would know that his Dakota is a 2004 4.7L, JUST LIKE YOURS.
|
Kowalski
GenIII
11/15/2006
12:26:09
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
Sometimes when a mechanic makes a mistake, they just fix it quietly - that way, they can still bill you for the labor, in this case to reinstall the stock cams. Since one of the codes was a map code, that would be my guess as to what may have been really wrong, but about impossible to prove unless the machanic owns up to it. Since someone else installed the HO cams in an '04 without incident, that would be my best guess as to what may have been really going on.
Lead, follow, or get out of the way
|
bash
Dodge Dakota
JOIN HERE
11/16/2006
19:10:28
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
yeh, i guess if i had payed over 100 dollars total then i would tend
to agree with you.
but thats not the case.
|
GraphiteDak
GenIII
11/16/2006
22:12:34
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
I agree with the MAP sensor. Aside from a CAM sensor being wacked, that would also make it barely run if at all!
Imagine the mechanics thoughts as he takes it back apart swapping the stock cams back into it. Then coming across a loose plug at the MAP sensor LOL! OOPS!
|
bash
Dodge Dakota
JOIN HERE
11/17/2006
09:22:12
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
well atleast i only payed 90 bucks for the install regardless of how
much time he had in =x haha
|
GraphiteDak
GenIII
11/17/2006
11:56:15
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
That was a really good deal. would have been sweet if everything would have worked out ok.
I do that stuff myself, but I would think you would usually pay someone $150 or more easy for that kinf of work done.
|
bash
Dodge Dakota
JOIN HERE
11/17/2006
21:58:42
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
well guy down in san diego that runs socal dakota has a buddy that
quoted me almost 400 for the install.. HA
im just happy to have my truck back to normal, i was shook up for
a while.
|
GraphiteDak
GenIII
11/17/2006
22:38:04
| RE: 2004 4.7 H.O. CAMS
IP: Logged
Message:
$400 sounds about right for shop rates!
If I were you, I would contact KRCPerformance and ask THEM about the HO cams in the 2004
They ONLY do Dodge.
|
| | P 1 Next Page>> |
