2009 SM5 Spyder hesitates and bogs down after Fuel fill up?..

[laser1972]

The way to do this is to simply plug the hose going to the purge valve. Makes no difference to the engine function and will tell you, for sure, if the purge valve is bad.

so since i have to take the hose off eventually to replace the valve, the top hose going into it, i just un clamp it and then plug it, start the bike and what am i looking for engine wise?

Again, when the bike starts , it runs strong, its only when I get it out and about it starts acting up

 

[laser1972]

The cracks are " microscopic " ..... this from others who couldn't see any cracks in their's .... Mike :thumbup:

can i put a little moisture on the hoses to see if any bubbles or anything comes from the hose?...

 

[BajaRon]

so since i have to take the hose off eventually to replace the valve, the top hose going into it, i just un clamp it and then plug it, start the bike and what am i looking for engine wise?

Again, when the bike starts , it runs strong, its only when I get it out and about it starts acting up

You can plug the purge valve permanently if you remove the evap canister. But I would simply ride like you normally would with the panel off so you get fresh air into the evap canister while you're testing.

can i put a little moisture on the hoses to see if any bubbles or anything comes from the hose?...

Just replace them with good silicone rubber. They're cheap insurance.

 

[laser1972]

2nd UPDATE:

I changed the purge valve, when the new fuel filter was installed, no change...

When the purge valve was changed, it does not hesitate or surge, but runs rough now... Have new coil, plugs and wires next...

I used the screw in clamps on the purge valve instead of the crimp clamps (same ones i used on the fuel filter lines)

I doubt that would make a difference?

 

[BajaRon]

2nd UPDATE:

I changed the purge valve, when the new fuel filter was installed, no change...

When the purge valve was changed, it does not hesitate or surge, but runs rough now... Have new coil, plugs and wires next...

I used the screw in clamps on the purge valve instead of the crimp clamps (same ones i used on the fuel filter lines)

I doubt that would make a difference?

Clamps don't make a difference on the purge valve. That's not it. I can't imagine that ignition would change with fuel level. I will be surprised if these make a difference. Without reading through all the threads. Have you considered just having diagnostics run at the dealer? You are spending a lot of time and money replacing parts that aren't helping. A thorough diagnostic might save you quite a bit of both.

 

[ButterSmooth]

Wouldn't a hemostat clamped on the line to the purge valve eliminate the evap system completely? Unless there is a fuel system pressure sensor somewhere -- then who knows what the ECU will do...

 

[laser1972]

Clamps don't make a difference on the purge valve. That's not it. I can't imagine that ignition would change with fuel level. I will be surprised if these make a difference. Without reading through all the threads. Have you considered just having diagnostics run at the dealer? You are spending a lot of time and money replacing parts that aren't helping. A thorough diagnostic might save you quite a bit of both.

Actually someone suggested I plug the valve purge hose going to the cannister, started it up and seems to idle nice and with with power..

I did notice that clamp and hose it pulled right off without me even touching the clamp

Haven't taken it out yet as I have most of the panels off and some stuff for the lights are hanging out so need to put some back on

Also heard the dealership might have to do s software update on a purge valve ?...

 

[BajaRon]

Actually someone suggested I plug the valve purge hose going to the cannister, started it up and seems to idle nice and with with power..

I did notice that clamp and hose it pulled right off without me even touching the clamp

Haven't taken it out yet as I have most of the panels off and some stuff for the lights are hanging out so need to put some back on

Also heard the dealership might have to do s software update on a purge valve ?...

I might not have been the only one. But I suggested plugging the purge valve hose. Many have done this permanently. It certainly eliminates any issues with the system. It's part of the Canister-Ectomy surgery. Gets rid of the entire evap system. But if you're going to plug the purge valve permanently, you need to do a few more minor things to complete the modification.

 

[laser1972]

I might not have been the only one. But I suggested plugging the purge valve hose. Many have done this permanently. It certainly eliminates any issues with the system. It's part of the Canister-Ectomy surgery. Gets rid of the entire evap system. But if you're going to plug the purge valve permanently, you need to do a few more minor things to complete the modification.

yes did a search and I am going to run the other hose from the gas tank out of the canister to the back outside fender with extra hose and filter..

 

[Mikey]

What would happen if he unhooked that juice box just for kicks and see if that would make a change?

 

[laser1972]

What would happen if he unhooked that juice box just for kicks and see if that would make a change?

True, i might try that, maybe that thing finally crapped out... Just have to trace the wires and see whats what

This morning, I did take it out and its a little better, but still lacks power like before... Coil, plugs and wires are next to see if that changes anything