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> Car sometimes dies on deceleration then hard to restart, Is attached pic the deceleration valve?
auto_cran
post Mar 18 2012, 05:49 PM
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So we just fixed a fuel smell issue - bad hoses from the tank were leaking. So after pulling the tank and replacing those hoses, the leak & fumes are gone.

On the test drive - car ran good. But a couple times when coming to a red light, it would die. Restart up just fine & go. But after 15 min, and this happening a few more times, car wouldn't start. It would turn over, but no start - like it was flooded. I could hear the fuel pump running. Fuel pressure still at 35. After waiting 5-10 min, it would start.

Seems like when it dies, it's always when decelerating. Haynes manual mentions a Deceleration Valve. Would this have anything to do wth my problem?

In the engine bay, the fuel regulator is not hooked up to the Deceleration Valve - the end for that hose is plugged.

Along with that, I'm not sure I even have the Deceleration Valve. Is this it it in the middle of the pic - the silver thing with the 3 hoses coming out of it? If so, those hoses are not connected right (according to Vacuum Hose Layout).

(IMG:http://www.914world.com/bbs2/uploads_offsite/i171.photobucket.com-14123-1332119092.1.jpg)

Any ideas on what's causing our 914 to die on deceleration?

Car is a 74 1.8 all stock (L-Jetronic).

Thanks!

Chris
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markyb
post Mar 18 2012, 06:54 PM
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QUOTE(auto_cran @ Mar 18 2012, 07:49 PM) *

So we just fixed a fuel smell issue - bad hoses from the tank were leaking. So after pulling the tank and replacing those hoses, the leak & fumes are gone.

On the test drive - car ran good. But a couple times when coming to a red light, it would die. Restart up just fine & go. But after 15 min, and this happening a few more times, car wouldn't start. It would turn over, but no start - like it was flooded. I could hear the fuel pump running. Fuel pressure still at 35. After waiting 5-10 min, it would start.

Seems like when it dies, it's always when decelerating. Haynes manual mentions a Deceleration Valve. Would this have anything to do wth my problem?

In the engine bay, the fuel regulator is not hooked up to the Deceleration Valve - the end for that hose is plugged.

Along with that, I'm not sure I even have the Deceleration Valve. Is this it it in the middle of the pic - the silver thing with the 3 hoses coming out of it? If so, those hoses are not connected right (according to Vacuum Hose Layout).

http://i171.photobucket.com/albums/u307/au...an/DSC01649.jpg

Any ideas on what's causing our 914 to die on deceleration?

Car is a 74 1.8 all stock (L-Jetronic).

Thanks!

Chris


Chris,
check out my post a few below yours' I'm having a different problem'although in my 2nd photo you can see the decel valve on my '75 with L-jet...looks different than yours'maybe does the same thing. I still need to figure out how it works since I have the opposite problem, idle too high when I come to a stop...

http://www.914world.com/bbs2/index.php?showtopic=175155


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auto_cran
post Mar 19 2012, 06:02 AM
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Thanks Mark.

Yeah, mine definitely looks differnt from what your picture (and the Haynes manual) shows.

Chris
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TheCabinetmaker
post Mar 19 2012, 06:15 AM
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That is a decel valve from a d-jet. Not sure if the L is different, but according to Marky's pic it is. It will not make your car die or even not run. Well, maybe it will on an L-jet. I just not sure how it differs in the L-jet system. Its an emissions valve. It slows the decel to help complete burn. If this didn't happen before you pulled the tank, that is where I would start. Pull the belly pan and look for a kinked line.
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