Car sometimes dies on deceleration then hard to restart, Is attached pic the deceleration valve? |
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Car sometimes dies on deceleration then hard to restart, Is attached pic the deceleration valve? |
auto_cran |
Mar 18 2012, 05:49 PM
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#1
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Member Group: Members Posts: 56 Joined: 12-February 12 From: Dallas, Texas Member No.: 14,123 Region Association: None |
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 |
markyb |
Mar 18 2012, 06:54 PM
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#2
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Member Group: Members Posts: 100 Joined: 27-November 11 From: Rochester, Michigan Member No.: 13,823 Region Association: None |
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 |
auto_cran |
Mar 19 2012, 06:02 AM
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#3
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Member Group: Members Posts: 56 Joined: 12-February 12 From: Dallas, Texas Member No.: 14,123 Region Association: None |
Thanks Mark.
Yeah, mine definitely looks differnt from what your picture (and the Haynes manual) shows. Chris |
TheCabinetmaker |
Mar 19 2012, 06:15 AM
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#4
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
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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