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#1
11-24-2005, 02:19 PM
Join Date: Nov 2005
Posts: 9
The speedometer in the wife’s H2 started to jitter for several weeks and then it worked for a few days off and on then when dead. All of the other instrument work fine. I and leaning toward replacing the PCM. I have toyed with replacing the OSS sending unit on the transmission but the cruse control still works. From my understanding they both use the same speed pick up module. I have heard that a weak signal may work for the cruse but the speedometer needs a stronger signal.
Does anyone have any ideas if I should replace the sending unit first or will that just be throwing good money after bad?
__________________
Jeff / aka: Jethro / aka: Redneck
H1 - 95 NA (My HMCS)
H2 - 03 (Wife\'s)
Freedom does not come free...
Thanks to all that have served and to those who are actively protecting the freedom that we take for granted!
#2
11-24-2005, 02:19 PM
Join Date: Nov 2005
Posts: 9
The speedometer in the wife’s H2 started to jitter for several weeks and then it worked for a few days off and on then when dead. All of the other instrument work fine. I and leaning toward replacing the PCM. I have toyed with replacing the OSS sending unit on the transmission but the cruse control still works. From my understanding they both use the same speed pick up module. I have heard that a weak signal may work for the cruse but the speedometer needs a stronger signal.
Does anyone have any ideas if I should replace the sending unit first or will that just be throwing good money after bad?
__________________
Jeff / aka: Jethro / aka: Redneck
H1 - 95 NA (My HMCS)
H2 - 03 (Wife\'s)
Freedom does not come free...
Thanks to all that have served and to those who are actively protecting the freedom that we take for granted!
#3
11-24-2005, 02:47 PM
Join Date: Jan 2005
Location: Gilbert Arizona
Posts: 78
I thought cruse control uses engine vacuum for its sensor, don't no for sure.
__________________
http://www.enichesoftware.com/intro.wmv
#4
11-28-2005, 03:21 PM
Join Date: Nov 2003
Location: HIHUMMER =\'s Mrs. Churchie :D
Posts: 1,585
went through speedo preob on my 2003....just had it replaced when i couldnt take it any more
#5
11-28-2005, 03:28 PM
Hummer Professional
Join Date: Sep 2004
Location: Dallas
Posts: 406
Replace the PCM if you like wasting money.
Replace the IPC if you want to fix your problem.
#6
11-28-2005, 04:40 PM
Banned
Join Date: Jan 2003
Posts: 24,247
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Hummertech:
Replace the PCM if you like wasting money.
Replace the IPC if you want to fix your problem. </div></BLOCKQUOTE>x2
#8
12-02-2005, 12:58 AM
Join Date: Nov 2005
Posts: 9
Thanks. I will look intothe IPC.
I wish it did not rack up miles but the odometer and cruse both still function. My dealer recomended the PCM. I could not see how this would be the problem without other issues in shifting or performance.
__________________
Jeff / aka: Jethro / aka: Redneck
H1 - 95 NA (My HMCS)
H2 - 03 (Wife\'s)
Freedom does not come free...
Thanks to all that have served and to those who are actively protecting the freedom that we take for granted!
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