Parts Catalog Accessories Catalog Tech Info Tech Forums
 
  Search our site:    
 Cart  | Project List | Order Status | Help    
  We salute a legendary member of the community.
Thank you for selflessly sharing your wisdom with us...
Go Back   Pelican Parts Technical BBS > 1- Porsche Technical Forums > Porsche 928 Technical Forum

Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Feb 2011
Posts: 21
Garage
cruise control problem

Setting the cruise will make it go WOT every time. Accelerate and resume go WOT too. Cancel still does cancel, thank goodness Any thoughts?
__________________
~Roy

1983 928S US 4.7 auto, black/burgundy 77k
M417 M438 I455 M468 M484 M490 M494 M533 M650
Old 05-25-2011, 07:43 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #1 (permalink)
Formerly from Bannlist
 
MPDano's Avatar
 
Join Date: Dec 2007
Location: Sunny San Diego
Posts: 8,885
Garage
Sounds like your Cruise Control Box is going weird. It's a silver box right on the center hump behind the Center Console. It's kinda tucked in but I think you can gain access by just removing one of the side panels. You can open them up and check the circuit board for any obvious damage. Could be corroded contacts too at the plug.

Signal Stalk CC Control contacts could be damaged or stuck inside the Stalk too. This would require rivets removed and very careful disassembly. There are lots of springs, bearings, etc in the Stalk. I actually took one apart but it took one of my friends for re-assembly. I couldn't do it.
__________________
1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

Porsche928Forums.com (NOW Mobile Enabled!)
Old 05-25-2011, 08:24 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #2 (permalink)
Registered User
 
Join Date: Feb 2011
Posts: 21
Garage
Ok, will check that out. Thanks
__________________
~Roy

1983 928S US 4.7 auto, black/burgundy 77k
M417 M438 I455 M468 M484 M490 M494 M533 M650
Old 05-26-2011, 03:28 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #3 (permalink)
Registered User
 
harborman's Avatar
 
Join Date: Dec 2009
Location: SW MIchigan
Posts: 1,650
Garage
Quote:
Originally Posted by caspermj View Post
Setting the cruise will make it go WOT every time. Accelerate and resume go WOT too. Cancel still does cancel, thank goodness Any thoughts?
Someone just had a post on bad solder joints in the cruise control box. You might do a search on that. Also, check into Rennlist 928 section. I believe they may have also changed some comparator chips in the box.
__________________
1986 928S
32 valve engine
All stock, automatic, 539 Weissgold Metallic, 60K original miles, Goodyear F1 tires.
Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L
Old 05-26-2011, 04:14 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #4 (permalink)
Registered User
 
Join Date: Jul 2010
Location: Porterville, Ca.
Posts: 101
It does sound as if some of the solder joints are loose. I have re-soldered 4 with the same symptoms and got 3 to work correctly again. The 4th had a very strong burnt smell before I re-soldered but tried anyway. Access is from passenger side and the box may be (should be) held down with an 8 mm screw.
__________________
'73 914 2.0, '84 944 coupe, '87 944 coupe, '90 944s2 cabriolet, '81 928, '86.5 928s, '71 corvette, '84 corvette
Old 05-26-2011, 05:57 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #5 (permalink)
SharkHead
 
JhwShark's Avatar
 
Join Date: Oct 2009
Location: SF Bay Area
Posts: 964
Garage
Do many of us really use the Cruise control? I suppose on a long distance haul...but, I find I like Human Shark control anyway!

thanks Leo
__________________
'79 928, 85k Opal Metallic
'72 BMW 3.0 csi, 85k km (euro Deutschland '82) Taiga
'74 1/2 MGB , 125k Sahara
'93 BMW 525i, 260k "the beater" Garnet
Old 05-26-2011, 07:57 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #6 (permalink)
Formerly from Bannlist
 
MPDano's Avatar
 
Join Date: Dec 2007
Location: Sunny San Diego
Posts: 8,885
Garage
Quote:
Originally Posted by JhwShark View Post
Do many of us really use the Cruise control? I suppose on a long distance haul...but, I find I like Human Shark control anyway!

thanks Leo
Yeah, since I fixed mine on my Euro. I found myself "never" using it, but it's there if i need it. I'm with you, I like full control of my Shark.
__________________
1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

Porsche928Forums.com (NOW Mobile Enabled!)
Old 05-26-2011, 07:59 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #7 (permalink)
Registered User
 
harborman's Avatar
 
Join Date: Dec 2009
Location: SW MIchigan
Posts: 1,650
Garage
Quote:
Originally Posted by JhwShark View Post
Do many of us really use the Cruise control? I suppose on a long distance haul...but, I find I like Human Shark control anyway!

thanks Leo
Sure do use it. If you drive long distances on open roads it is a nice feature. City driving NO. I actually think it improves gas mileage. Driving through Nebraska on I-80, set it to 75 and let it cruise.
__________________
1986 928S
32 valve engine
All stock, automatic, 539 Weissgold Metallic, 60K original miles, Goodyear F1 tires.
Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L
Old 05-26-2011, 01:11 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #8 (permalink)
Registered User
 
stepson's Avatar
 
Join Date: Mar 2010
Location: Texas
Posts: 921
I use my CC on long jaunts. Used it coming back from SITM the first time I went. Had it set at 110 all the way across AR. Even passed a stationary Little Rock LEO, but he declined to pursue. (thank God)
__________________
John Curry (Drift King) 928OC member
Grand Prix White 1994 GTS AT (The GTS)
Cobalt Blue 1989 S4 AT (The Blue Car)
Indishrot 1984 Euro S AT (The Stepson)
Black Metallic 1984 Euro S 5 speed (The Schwartz)

Last edited by stepson; 05-26-2011 at 01:59 PM.. Reason: correct state abbrev
Old 05-26-2011, 01:58 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #9 (permalink)
Formerly from Bannlist
 
MPDano's Avatar
 
Join Date: Dec 2007
Location: Sunny San Diego
Posts: 8,885
Garage
Quote:
Originally Posted by stepson View Post
I use my CC on long jaunts. Used it coming back from SITM the first time I went. Had it set at 110 all the way across AR. Even passed a stationary Little Rock LEO, but he declined to pursue. (thank God)
Lucky you. In California, that's automatic Jail time. Not that I haven't been at least that speed in both cars
__________________
1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

Porsche928Forums.com (NOW Mobile Enabled!)
Old 05-26-2011, 02:12 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #10 (permalink)
Registered User
 
Join Date: Feb 2011
Posts: 21
Garage
I hear you guys about the usage. Up here in Nova Scotia, most everything is a 20 - 30 minute highway trip. I use cruise in my other vehicles all the time. On the twisty back roads, never I can just be a bit picky about having everything working as it should! Thanks for the advice so far, I'll be sure to pull off the box and check the solder joints and post up what I find.
__________________
~Roy

1983 928S US 4.7 auto, black/burgundy 77k
M417 M438 I455 M468 M484 M490 M494 M533 M650
Old 05-26-2011, 05:25 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #11 (permalink)
Old 05-26-2011, 05:25 PM
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 10:52 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.