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Old 02-21-2010, 02:10 AM
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4.7 to HO swap

Okay not to beat a dead horse but, I've already purchased remanufactured 4.7 HO, I plan on putting it in my 2002 dodge Durango which had a standard 4.7, both being of JTEC design and same year the PCM do match up although I understand the HO PCM would have a more aggressive program. What is this about the knock sensors? from what I am reading my vehicle has provisions for one where or what exactly am I looking for?
Any help would be appreciated I am not a master mechanic but side by side comparison and just reading the specifications the HO is a much beefier engine one that I see lasting a very long time, Not that the standard wasn’t mine had 170,000 when it jumped time.
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Old 02-21-2010, 02:51 AM
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Re: 4.7 to HO swap

the HO has 2 knock sensors. I don't have a wiring diagram for the durango, so I can't help you any further on that.

You will need to use the PCM for the HO. It's a lot different mapping. You'll have to get it flashed to have your VIN on it though.
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Old 02-21-2010, 01:38 PM
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Re: 4.7 to HO swap

get it installed and find an SCT tuner near you
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Old 02-22-2010, 11:24 PM
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Re: 4.7 to HO swap

Okay thanks guys, is the SCT tuner your talking about what's sold on Air Ram for a good piece of change, plus you have to purchase the fuel reading gage and apparatus to make it work, is there a way someone can just take my PCM be it standard or HO and make it work to see all the benefits of this brand new HO engine? I am in middle Tennessee (ft Campbell actually) and have been looking for a jeep with a HO junked but there are just none to be found as of yet.

I have not found a harness but I see on rock auto the knock sensor pigtail sells for 25 bucks, I think I will purchase them so I don’t have to remove the intake manifold later if I do find a HO harness, from what I understand the engine will experience pinging if I don’t utilize the knock sensors, or run at least 89 octane. Below are vehicles with years which run the same sensor, can I use their harness in my vehicle or how do I know a vehicles harness will plug into my vehicle?

DODGE DURANGO 2005
DODGE DURANGO ADVENTURER(2006 - 2007)
DODGE DURANGO LIMITED (2006 - 2007)
DODGE DURANGO SLT (2006 - 2007)
DODGE DURANGO SXT (2006 - 2007)
DODGE RAM 1500 LARAMIE 2006
DODGE RAM 1500 PICKUP 2005
DODGE RAM 1500 SLT 2006
DODGE RAM 1500 ST 2006
DODGE RAM 1500 TRX4 2006
JEEP GRAND CHEROKEE 2002
JEEP GRAND CHEROKEE LAREDO (2002 - 2005)
JEEP GRAND CHEROKEE LIMITED (2002 - 2005)
JEEP GRAND CHEROKEE OVERLAND (2002 - 2004)
JEEP GRAND CHEROKEE SPECIAL EDITION 2004


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get it installed and find an SCT tuner near you
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Old 02-22-2010, 11:34 PM
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Re: 4.7 to HO swap

B&G performance can tune/format the PCM to your vehicle. No need for a sct tuner. Im not sure on the harnesses...but it looks like they all use the same...so it should plug right in...
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Old 02-22-2010, 11:37 PM
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Re: 4.7 to HO swap

Okay I am looking for a HO PCM what exactly are you talking about getting it flashed for my vin is that something that has to be done at the stealership

Quote:
Originally Posted by 206WJ View Post
the HO has 2 knock sensors. I don't have a wiring diagram for the durango, so I can't help you any further on that.

You will need to use the PCM for the HO. It's a lot different mapping. You'll have to get it flashed to have your VIN on it though.
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Old 02-22-2010, 11:49 PM
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Re: 4.7 to HO swap

B&G performance can handle that for you
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