SuiteSuccess Posted September 24, 2021 Report Share Posted September 24, 2021 Noticed after breaking cruise control it would not re-engage occasionally. Finally figured out that if I put my toe under the pedal and pulled back slightly it would re-engage every time which tells me the pedal is not “springing back” completely. How do I re-adjust the pedal? Quote 2006 Volvo 780 "Hoss" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift Bed Build by "JW Morgan's Custom Welding" 2017 DRV 39DBRS3 2013 Smart Passion Coupe "Itty Bitty" "Don't go around saying the world owes you a living. The world owes you nothing. It was here first!" Link to comment Share on other sites More sharing options...
noteven Posted September 24, 2021 Report Share Posted September 24, 2021 I would think a 2006 Volvo cruise control is controlled by a pressure sensor in the foundation brake circuit somewheres. The foot valve might be hanging up a bit keeping some air psi on the foundation brake circuit. Do you see any psi on the brake application pressure guage, even 1/2 a needle? It could be a sensor or stiction in the foot valve. Note: they can write several volumes about what I don't know about Volvo trucks. 🤣 Quote "Are we there yet?" asked no motorcycle rider, ever. Link to comment Share on other sites More sharing options...
Brad & Jacolyn Posted September 24, 2021 Report Share Posted September 24, 2021 The time mine was doing this it had to go the the shop for a sensor (think it was a throttle position sensor). Until it was replaced I put a small bungee on the pedal to hold it up a bit. That worked fine. Quote Brad and Jacolyn Tucker the Wonder dog and Brynn the Norfolk Terrier 2009 Smart "Joy" 2004 VNL630 "Vonda the Volvo" 2008 Hitch Hiker 35 CK Champagne Edition VED12 465 HP, Freedomline, 3.73 ratio, WB 218" Fulltiming and loving it. Link to comment Share on other sites More sharing options...
SuiteSuccess Posted September 24, 2021 Author Report Share Posted September 24, 2021 30 minutes ago, noteven said: I would think a 2006 Volvo cruise control is controlled by a pressure sensor in the foundation brake circuit somewheres. The foot valve might be hanging up a bit keeping some air psi on the foundation brake circuit. Do you see any psi on the brake application pressure guage, even 1/2 a needle? It could be a sensor or stiction in the foot valve. Note: they can write several volumes about what I don't know about Volvo trucks. 🤣 Sorry don’t have a gauge on my truck. My instrumentation is very Spartan. Quote 2006 Volvo 780 "Hoss" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift Bed Build by "JW Morgan's Custom Welding" 2017 DRV 39DBRS3 2013 Smart Passion Coupe "Itty Bitty" "Don't go around saying the world owes you a living. The world owes you nothing. It was here first!" Link to comment Share on other sites More sharing options...
SuiteSuccess Posted September 24, 2021 Author Report Share Posted September 24, 2021 31 minutes ago, Brad & Jacolyn said: The time mine was doing this it had to go the the shop for a sensor (think it was a throttle position sensor). Until it was replaced I put a small bungee on the pedal to hold it up a bit. That worked fine. Thanks Brad. Quote 2006 Volvo 780 "Hoss" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift Bed Build by "JW Morgan's Custom Welding" 2017 DRV 39DBRS3 2013 Smart Passion Coupe "Itty Bitty" "Don't go around saying the world owes you a living. The world owes you nothing. It was here first!" Link to comment Share on other sites More sharing options...
noteven Posted September 24, 2021 Report Share Posted September 24, 2021 I'm with Brad & Jocelyn - some sensor somewheres Quote "Are we there yet?" asked no motorcycle rider, ever. Link to comment Share on other sites More sharing options...
HERO Maker Posted September 24, 2021 Report Share Posted September 24, 2021 1 hour ago, Brad & Jacolyn said: The time mine was doing this it had to go the the shop for a sensor (think it was a throttle position sensor). Until it was replaced I put a small bungee on the pedal to hold it up a bit. That worked fine. Same here Carl. Quote Rocky & Sheri Rhoades '01 Volvo 770 2016 DRV Mobile Suites, HoustonHERO Makers Ministry Link to comment Share on other sites More sharing options...
Wrknrvr Posted September 25, 2021 Report Share Posted September 25, 2021 Several years ago I replaced my throttle position sensor. Just as preventative work. My cruise control worked good on basically level travel. But coming to a hill I would need to help it before it really needed power, as it would then try to catch up to the proper rpms. I just lived with it. Once I replaced the tps the cruiser control has worked as designed. On my 2000 VNL it was just the sensor itself that was replaced. A year or so later I changed one for a friend on a 2004 VNL and it included the peddle. It was simple to replace on both trucks. Vern in a T-shirt Quote Link to comment Share on other sites More sharing options...
Brad & Jacolyn Posted September 26, 2021 Report Share Posted September 26, 2021 Carl I went back to my maintenance log and the only thing it said was adjusted the brake pedal. No mention of any sensors replaced. Mine would actually disengage the Cruise control if we hit a bump. I attributed (how do you like that word) it to the pedal bouncing a bit so it thought I pressed the pedal. I have no idea what they did to adjust it but the baby bungee holding the pedal up corrected the problem until the shop adjusted the pedal. Quote Brad and Jacolyn Tucker the Wonder dog and Brynn the Norfolk Terrier 2009 Smart "Joy" 2004 VNL630 "Vonda the Volvo" 2008 Hitch Hiker 35 CK Champagne Edition VED12 465 HP, Freedomline, 3.73 ratio, WB 218" Fulltiming and loving it. Link to comment Share on other sites More sharing options...
SuiteSuccess Posted September 26, 2021 Author Report Share Posted September 26, 2021 39 minutes ago, Brad & Jacolyn said: Carl I went back to my maintenance log and the only thing it said was adjusted the brake pedal. No mention of any sensors replaced. Mine would actually disengage the Cruise control if we hit a bump. I attributed (how do you like that word) it to the pedal bouncing a bit so it thought I pressed the pedal. I have no idea what they did to adjust it but the baby bungee holding the pedal up corrected the problem until the shop adjusted the pedal. Thanks Brad. I’m thinking that’s all I need. It’s not disengaging with bumps etc. Mostly occurring when I just tap the brake pedal to disengage. If I press hard on the brake, no issues with cc re-engaging. Quote 2006 Volvo 780 "Hoss" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift Bed Build by "JW Morgan's Custom Welding" 2017 DRV 39DBRS3 2013 Smart Passion Coupe "Itty Bitty" "Don't go around saying the world owes you a living. The world owes you nothing. It was here first!" Link to comment Share on other sites More sharing options...
Parrformance Posted October 1, 2021 Report Share Posted October 1, 2021 I recall using a baby bungee as well on my 06 780 Quote 2006 Volvo VNL 780, " Arvey" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift 2003 Jeep Wrangler Rubicon 2010 Forest River Coachman Freedom Express 280RLS Jackalopee Link to comment Share on other sites More sharing options...
SuiteSuccess Posted October 1, 2021 Author Report Share Posted October 1, 2021 Found a service bulletin on how to adjust. Will see if I can post. Quote 2006 Volvo 780 "Hoss" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift Bed Build by "JW Morgan's Custom Welding" 2017 DRV 39DBRS3 2013 Smart Passion Coupe "Itty Bitty" "Don't go around saying the world owes you a living. The world owes you nothing. It was here first!" Link to comment Share on other sites More sharing options...
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