Quickthrotl Posted March 18, 2017 Report Share Posted March 18, 2017 Every now and then truck will not start everything works electricity but when you turn the key it will not turn over, if I unhook the batteries and reconnect it starts just fine. 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
I'mdonewiththis forum Posted March 18, 2017 Report Share Posted March 18, 2017 Are there any lights that light up when it won't start? Does it make any sound? It kinda sounds to me like a bad connection at a battery terminal. Link to comment Share on other sites More sharing options...
Quickthrotl Posted March 18, 2017 Author Report Share Posted March 18, 2017 Every thing works you can hear a relay in the dash click. It acts normal other than it won't start. Battery connections at all tight and don't appear to have any corrosion. I am going to pull all of the connections to be sure 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
I'mdonewiththis forum Posted March 18, 2017 Report Share Posted March 18, 2017 Starter relay? Starter solenoid? I have seen both of those act goofy one try and try again they work perfect. Link to comment Share on other sites More sharing options...
SuiteSuccess Posted March 18, 2017 Report Share Posted March 18, 2017 1 hour ago, Quickthrotl said: Every now and then truck will not start everything works electricity but when you turn the key it will not turn over, if I unhook the batteries and reconnect it starts just fine. You should hear about six clicks before trying to start. Are you sure you're waiting long enough before engaging the starter? 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...
MrSeas Posted March 18, 2017 Report Share Posted March 18, 2017 Do what Suite does wait before turning key. Link to comment Share on other sites More sharing options...
Quickthrotl Posted March 18, 2017 Author Report Share Posted March 18, 2017 30 minutes ago, SuiteSuccess said: You should hear about six clicks before trying to start. Are you sure you're waiting long enough before engaging the starter? I will be sure to make sure of that and see it's hard to diagnose as it doesn't do it all the time 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
Big5er Posted March 19, 2017 Report Share Posted March 19, 2017 I would also check the battery connection at the starter. MY PEOPLE SKILLS ARE JUST FINE.~It's my tolerance to idiots that needs work.~ 2005 Volvo 780 VED12 465hp / Freedomline transmission singled mid position / Bed by Larry Herrin2018 customed Mobile Suites 40KSSB3 2014 smart Fortwo Link to comment Share on other sites More sharing options...
NeverEasy Posted March 19, 2017 Report Share Posted March 19, 2017 Disconnect and re-connect and it starts? Sounds like the computer is telling it not to start. The disconnect resets the computer???? I would jump the starter solenoid when it would not start just to be sure but the problem is most likely in some sensor not letting the truck start. If you don't want to jump the solenoid, put a meter on the starter solenoid and see if there is DC power going there when you turn the switch. Also, put a meter on the battery cable at the starter to ground. Open circuit voltage will always be there. If you hit the switch and voltage goes to zero then it is a bad connection or cable. Chet & Deb '01 Volvo 660 w/ Smart '19 Forest River Columbus 320RS 5th wheel 2022 Chev 2500HD Long Bed Retired CWO4, USN and federal service Electronics Tech/Network Engineer/Welder/Machinist Link to comment Share on other sites More sharing options...
Randyretired Posted March 19, 2017 Report Share Posted March 19, 2017 I had a similar problem before it just wouldn't start at all on the road. Turned out to be a bad battery cable. The cable had internal corrosion that was not obvious. New cables fixed the problem. Checking the voltage at the starter versus at the battery while trying to start finally pin pointed the problem. Randy 2001 Volvo VNL 42 Cummins ISX Autoshift Link to comment Share on other sites More sharing options...
VegasFlyer Posted March 19, 2017 Report Share Posted March 19, 2017 Another potential culprit when you get an intermittent issue, would be your ignition switch. John Southern Nevada 2008 Volvo 780, D13, I-Shift 2017 Keystone Fuzion 420 Toyhauler 2017 Can-Am Maverick X3-RS Link to comment Share on other sites More sharing options...
rickeieio Posted March 19, 2017 Report Share Posted March 19, 2017 6 hours ago, Randyretired said: I had a similar problem before it just wouldn't start at all on the road. Turned out to be a bad battery cable. The cable had internal corrosion that was not obvious. New cables fixed the problem. Checking the voltage at the starter versus at the battery while trying to start finally pin pointed the problem. X2. Simple things first. KW T-680, POPEMOBILE Newmar X-Aire, VATICAN Lots of old motorcycles, Moto Guzzi Griso and Spyder F3 currently in the front row Young enough to play in the dirt as a retired farmer. contact me at rickeieio@yahoo.com Link to comment Share on other sites More sharing options...
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