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Join Date: Nov 2002
Location: Jacksonville, FL
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85.5 944 Long Crank Time B4 Starting

My 944 has trouble starting if it sits for more than a day w/out being turned over. The trouble has been getting progressively worse. Case in point: If I start the car today, I'll be able to start it w/ no problem tomorrow. If I wait to start the car a couple of days from now, I will have to sit and crank it over and over before it will start (waiting a few minutes inbetween cranks as to not burn out the starter). If I spray carb cleaner in the throttle, it will fire up for a while, and then ususally die. I know my problem is the Fuel Pressure bleeding off while inbetween start ups, but don't know which valve should be replaced to keep me from having to wait for the Fuel Pump to run gas through the lines every few days. Once the car is started, there is no problem, idle is steady and it drives fine.

Can anyone point me to the right check valve?

Thanks!

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1985.5 Eurospec 944
1986 - 944
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2002 VW Jetta GLS 1.8T
Old 11-03-2003, 06:37 AM
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Check valve is back at the fuel pump. It's mounted in the discaharge end of the fuel pump -- the filter side.
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Hugh - So Cal 83 944 Driver Person
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Old 11-03-2003, 12:11 PM
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You mean starting fluid, not carb cleaner right? Unless Carb cleaner has some sort of great starting property I'm unaware of....
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1974 Vespa Rally 200, 1974 Vespa Primavera 125, 1963 Solex 2200, 1938 Buick Special, 2008 Mini Cooper S, 2010 Mazda CX-9, 1986 VW Vanagon Syncro Westfalia, 1989 VW Doka Tristar - in the stable
1989 Porsche 944, 1973 VW Beetle - gone but not forgotten
Old 11-03-2003, 12:20 PM
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are you serious? don't think they would stick any kind of flammable liquid in a carb cleaner? solvents, propellants, alcohol, petroleum, maybe they burn. You might be in line for the next darwin award

sneed, socal has pointed you in the right direction, just be sure not to overlook a possible leaking injector or especially an external leak around the fuel rail; hoses, fpr, dampener, injectors, etc. they leave a brownish/tan trail
Old 11-03-2003, 11:51 PM
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Thanks Guys!

Uh, yes, Carb cleaner is combustable

I'll check for a possible leaking injector, although there's no gas smell from the engine bay while trying to start....thankfully!!

Thanks for the info SoCal!!!
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Old 11-04-2003, 04:49 AM
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Quote:
Originally posted by highboost951
are you serious? don't think they would stick any kind of flammable liquid in a carb cleaner? solvents, propellants, alcohol, petroleum, maybe they burn. You might be in line for the next darwin award

sneed, socal has pointed you in the right direction, just be sure not to overlook a possible leaking injector or especially an external leak around the fuel rail; hoses, fpr, dampener, injectors, etc. they leave a brownish/tan trail
You guys are kidding, right? Carb cleaner is one of the most effective starting fluids around. It's pretty much all petroleum distillates.

Aaron
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Old 11-04-2003, 08:21 AM
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Quote:
Originally posted by AaronM
You guys are kidding, right? Carb cleaner is one of the most effective starting fluids around. It's pretty much all petroleum distillates.

Aaron
I think there is a touch of rocket fuel in there too.
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Hugh - So Cal 83 944 Driver Person
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Old 11-04-2003, 08:26 AM
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Huh!! Of course I knew it was combustable, but so is nail polish remover or wd-40. I just never knew it was something you could use as a starting fluid. I'm thinking of the big cans with the parts basket (like Gunk), not the spray stuff....
Well, I stand corrected. Learn somethine new everyday!
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1974 Vespa Rally 200, 1974 Vespa Primavera 125, 1963 Solex 2200, 1938 Buick Special, 2008 Mini Cooper S, 2010 Mazda CX-9, 1986 VW Vanagon Syncro Westfalia, 1989 VW Doka Tristar - in the stable
1989 Porsche 944, 1973 VW Beetle - gone but not forgotten
Old 11-04-2003, 08:51 AM
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Quote:
Originally posted by Tshabet
Huh!! Of course I knew it was combustable, but so is nail polish remover or wd-40. I just never knew it was something you could use as a starting fluid. I'm thinking of the big cans with the parts basket (like Gunk), not the spray stuff....
Well, I stand corrected. Learn somethine new everyday!
Ah, I had forgotten that the non-spray kind even existed. Haha. I can definitely see how you'd think it wouldn't make a good starting fluid.

Aaron
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Shifting is an art. Learn it, love it, live it.
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Silver 1998 Volvo S70 T5 <- Daily (Anja)
Guards Red 1986 951 <- Seattle car (Gretchen)
White 1976 914 2.0 F.I. <- Prodigal car, traded away then brought back again (Lorelei)
Old 11-04-2003, 09:00 AM
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Yep, actually this 944 is the first car I've ever owned that has fuel injection, so I've gone through many carb rebuilds and many of those paint cans of carb cleaner(put 85k on a 73 vw 1600cc beetle, for instance). When highboost951 mentioned propellants, I knew we were talking about two very different products
The stuff in the can is pretty evil etuff, and when you drop carb parts or bodies in it you have to remove anything that isn't metal (plastic fittings on float needle, for instance) because the carb cleaner will eat it up. Thus my confusion on pushing this stuff through all of the plastic and rubber parts of the 944 system. Still plenty flammable though!

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Grant
1974 Vespa Rally 200, 1974 Vespa Primavera 125, 1963 Solex 2200, 1938 Buick Special, 2008 Mini Cooper S, 2010 Mazda CX-9, 1986 VW Vanagon Syncro Westfalia, 1989 VW Doka Tristar - in the stable
1989 Porsche 944, 1973 VW Beetle - gone but not forgotten

Last edited by Tishabet; 11-04-2003 at 09:12 AM..
Old 11-04-2003, 09:09 AM
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