'07 SG dying : V-Twin Forum: Harley Davidson Forums

FLHX - 07 · 08-25-2009, 12:29 PM

About 2 months ago I hit about 5000 rpm and the motor just died. It had spark and the fuel pump running. With a dealer close, they got to in 30 mins. Didn't find anything wrong except it wasn't getting fuel. Removed the fuel line, all looked OK, put everything back together and it started.

I headed for home. About 10 miles away I nailed it and it died again. 15 mins later it started. Did this again just before arriving and the same thing happened.

Bike has PCIII, SE 255 cams, SE HTCC CNC heads, 103 download and 6200 rev limit. I removed the PCIII and threw on some XIEDs I had lying around. I had a lot of rides planned and didn't want any down time. Piled up 1500 miles or so. One day I stopped for about 15 mins, came out and it wouldn't start, no matter how long I waited.

Now at my home dealer, they replaced the ECM and all seemed fine. 1000 miles or so later I headed down an on-ramp and nailed it, died again and would not start. Last saturday and 120 miles from home, I left the bike in a dealer parking lot, doubled up with the ol'ady and went home.

This dealer doubts ECM problem, perhaps a kill switch circuit problem caused by vibration of high rpms...but it going to check everything. Anyone ever seen this before or has any ideas?

JRPUPINO · 08-25-2009, 02:00 PM

I would try looking at the fuel pump relay, some friends of mine have had similar problems and that was the fix. I think it was around $48.00 for the relay.Not a bad place to start, also not a bad idea to carry an extra one with ya when your on the road.

HogBag · 08-28-2009, 05:54 AM

Try the bike with out the power commander

MaloloJoe · 08-28-2009, 09:18 AM

Quote:

Originally Posted by JRPUPINO

I would try looking at the fuel pump relay, some friends of mine have had similar problems and that was the fix. I think it was around $48.00 for the relay.Not a bad place to start, also not a bad idea to carry an extra one with ya when your on the road.

I think you can switch the lighting relay with fuel system relay to verfiy if the relay is the problem. Don't have my manual with me, but I THINK that's the case. Can anyone confirm they are the same ?

FLHX - 07 · 09-09-2009, 11:10 AM

Quote:

Originally Posted by MaloloJoe

I think you can switch the lighting relay with fuel system relay to verfiy if the relay is the problem. Don't have my manual with me, but I THINK that's the case. Can anyone confirm they are the same ?

Here's an update:

3rd dealer replaced the fuel filter, fuel pressure regulator and in tank fuel line. Ran fine for 300 miles (stayed out of the throttle). The first time I nailed it, it died again. Waited a few minutes, disconnected the fuel line, hooked it back up and it started. I took off and redlined it in 1st thru 3rd gears....no problem....frustrating as hell!

It's going back to my home dealer who replaced the EMC ($500 for nothing) and I guess we'll see what they do this time.

BTW, it has done this with the Power commander and without, as well as with and without the Xieds.

silvrbill · 09-09-2009, 01:58 PM

Sounds like an electrical connection/sensor/relay problem to me.

HARLEYRIDER155 · 09-09-2009, 06:28 PM

I have a 2008 street glide but I have a buddy that has a 2007 street glide and he had a problem with his fuel line. The bike would stop running and that was it till you removed the fuel line and re installed it ..First time thats all the dealer did to fix it . They said it wasn't on all the way but we tried tugging on it and it didnt fall off or any thing the second time it happened. after the second time they replaced it and its been fine for about a year now....

Krayven Sumhead · 09-10-2009, 08:46 AM

The MoFuCo's "Parts Changers" are giving you your money's worth. Soon the whole engine will be replaced cuz they just can't figure it out. Good Luck.

FLHX - 07 · 09-10-2009, 11:20 AM

Quote:

Originally Posted by HARLEYRIDER155

I have a 2008 street glide but I have a buddy that has a 2007 street glide and he had a problem with his fuel line. The bike would stop running and that was it till you removed the fuel line and re installed it ..First time thats all the dealer did to fix it . They said it wasn't on all the way but we tried tugging on it and it didnt fall off or any thing the second time it happened. after the second time they replaced it and its been fine for about a year now....

After what I've seen and the experimenting I've done, this looks like the most logical culprit. I'm going to keep riding until this fails again a few times. If the fix is to disconnect/connect the fuel line, then that's what it's going to the shop for. Thanks for the info!

prophet · 09-10-2009, 11:55 AM

Does it feel like a fuel problem or does it seem electrical? The reason I say this is that someone on another forum had a problem with the ignition switch on an 08 where it would cut out intermittently. You could look into that as well.

FLHX - 07 · 09-10-2009, 12:15 PM

Quote:

Originally Posted by prophet

Does it feel like a fuel problem or does it seem electrical? The reason I say this is that someone on another forum had a problem with the ignition switch on an 08 where it would cut out intermittently. You could look into that as well.

I suppose it "feels" more electrical, only because it just dies with no sputtering. On the other hand, at 6000 rpm if the fuel is just cut off, it wouldn't feel any different. Ignition always remained on and the kill switch as well as ignition was always rocked several times with no difference. The only time the problem was ever corrected AFAIK, is when the fuel line was disconnected/connected. Also, according to all 3 techs who saw this in action said, there has ALWAYS been spark when the bike died....just no fuel.

ViennaHog · 09-10-2009, 12:22 PM

Quote:

Originally Posted by FLHX - 07

I suppose it "feels" more electrical, only because it just dies with no sputtering. On the other hand, at 6000 rpm if the fuel is just cut off, it wouldn't feel any different. Ignition always remained on and the kill switch as well as ignition was always rocked several times with no difference. The only time the problem was ever corrected AFAIK, is when the fuel line was disconnected/connected. Also, according to all 3 techs who saw this in action said, there has ALWAYS been spark when the bike died....just no fuel.

There is check valve in the joint with an o-ring that cannot be replaced. Replace the joint and the fuel line as a test. Not a lot of work.

swordfish · 09-16-2009, 10:55 PM

try idling the bike an start moving and wiggling wires, i'v solved alot of problems that way. could be a bad connection or ground.

FLHX - 07 · 09-17-2009, 10:50 AM

Quote:

Originally Posted by swordfish

try idling the bike an start moving and wiggling wires, i'v solved alot of problems that way. could be a bad connection or ground.

Good suggestion but, I've already done that. Since then, I've done some intense experimenting wiggling the fuel line at the quick disconnect and several high RPM passes. Each time out of 9 shut downs, an immediate disconnect and connect of the fuel line and the bike fires right up without waiting or hesitation. I've concluded the check valve in the tank or the fuel line tip has worn enough due to vibration or suction in the line, to cause the check valve to close.