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Problem: Warm start problem (95 GTI VR6, but applicable to others)

Table of Contents
RE: [gti-vr6] Hard start on 95 gti Saccuman Peter Civ Det 3 621AMSG/TRS <Peter.Saccuman@AVIANO.AF.MIL> Fri, 24 Apr 1998 12:39:13 +0200
Re: [gti-vr6] Hard start on 95 gti "Dave A." <sasakikojiro@earthlink> Fri, 24 Apr 1998 06:40:08 -0700
[gti-vr6] Hot Starting "The Korczaks" <korczaks@ptdprolog> Sat, 15 Aug 1998 12:15:42 -0400
[gti-vr6] Hot Starting Uwe Ross <Uwe.Ross@pobox> Sat, 15 Aug 1998 16:51:55 -0400
[gti-vr6] Hot Starting (Paul Bauer) <pbauer@MIT> Sat, 15 Aug 1998 22:17:11 EDT



From gti-vr6-owner@dev.tivoli Fri Apr 24 05:43 CDT 1998
From: Saccuman Peter Civ Det 3 621AMSG/TRS <Peter.Saccuman@AVIANO.AF.MIL>
To: "'RLichman'" <RLichman@aol>
Subject: RE: [gti-vr6] Hard start on 95 gti
Date: Fri, 24 Apr 1998 12:39:13 +0200
Cc: "'GTI List'" <gti-vr6@dev.tivoli>
 
There was a TSB on the warm hard starting problem on the '95's.  The
dealer replaced my fuel pump under warranty, and it fixed the problem.


Pete

Peter Saccuman
Computer Sciences Corporation
The Difficult Done Immediately, the Impossible Done by Appointment Only.

> -----Original Message-----
&gt; From:	RLichman [SMTP:&#82;Lichman&#64;aol<img src=/i/dc.gif border=0 width=35 height=15>]
> Sent:	Friday, April 24, 1998 9:10 AM
&gt; To:	&#103;ti-vr6&#64;dev.tivoli<img src=/i/dc.gif border=0 width=35 height=15>
> Subject:	[gti-vr6] Hard start on 95 gti
>
> Guys:I am having trouble starting my car....I have a 95 gti, vr6 of course!!!
> IT seems to be a fuel problem...I have replaced the pressure regulator...The
> fuel pressure seems to be bleeding off after the car has been off for about 5
> min. Are there any other things that could cause the fuel pressure to bleed
> off?











From gti-vr6-owner@dev.tivoli Fri Apr 24 09:13 CDT 1998
From: "Dave A." <sasakikojiro@earthlink>
To: RLichman <RLichman@aol>
Subject: Re: [gti-vr6] Hard start on 95 gti
Date: Fri, 24 Apr 1998 06:40:08 -0700
Cc: gti-vr6@dev.tivoli
 
> Guys:I am having trouble starting my car....I have a 95 gti, vr6 of course!!!
> IT seems to be a fuel problem...I have replaced the pressure regulator...The
> fuel pressure seems to be bleeding off after the car has been off for about 5
> min. Are there any other things that could cause the fuel pressure to bleed

Some tips:  Check your battery too.  My car exhibited these same symptoms when
the battery died-  hard to start in the morning.

Worth a check-  usually pep boys/Chief's will check it for free.

-Dave










From gti-vr6-owner@dev.tivoli Sat Aug 15 11:25 CDT 1998
From: "The Korczaks" <korczaks@ptdprolog>
To: <gti-vr6@dev.tivoli>
Subject: [gti-vr6] Hot Starting
Date: Sat, 15 Aug 1998 12:15:42 -0400
 
My first question for the group.  My '95 has had a hot starting problem
almost since new.  The inept dealer "could not duplicate" the problem.  It
seems like old fashioned vapor lock.  The problem is worse when its hot
outside.  It usually starts fine within 5 minutes of shutting off.
However, if you let it "soak" for 10 to 20 minutes, you have to crank it
for 5 -10 seconds to get it to start.  Any suggestions?  Fixes?  The car is
stock except for airbox mods w/K&N.

Yes, I did search the archives a number of ways before asking the group.
If somone can direct me to the thread where this was already covered, feel
free to e-mail me privately so as to not clutter the forum.

Thanks in advance

Jim Korczak

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From gti-vr6-owner@dev.tivoli Sat Aug 15 15:54 CDT 1998
From: Uwe Ross <Uwe.Ross@pobox>
To: gti-vr6@dev.tivoli
Subject: [gti-vr6] Hot Starting
Date: Sat, 15 Aug 1998 16:51:55 -0400
Cc: The Korczaks <korczaks@ptdprolog>
Organization: Ross-House
 
> Subject: [gti-vr6] Hot Starting
&gt; From: "The Korczaks" &lt;&#107;orczaks&#64;ptdprolog<img src=/i/dn.gif border=0 width=35 height=15>&gt;
> Date: Sat, 15 Aug 1998 12:15:42 -0400
>
> My first question for the group.  My '95 has had a hot starting problem
> almost since new.  The inept dealer "could not duplicate" the problem.  It
> seems like old fashioned vapor lock.  The problem is worse when its hot
> outside.  It usually starts fine within 5 minutes of shutting off.
> However, if you let it "soak" for 10 to 20 minutes, you have to crank it
> for 5 -10 seconds to get it to start.  Any suggestions?  Fixes?  The car is
> stock except for airbox mods w/K&N.

The first thing you do with a hot start problem is a fuel pressure
leak-down test.  Hook a fuel pressure gauge to the fuel rail, start the
car, shut it down and see how much fuel pressure you have remaining
after some period of time.  There's a spec for this, and if you want,
I'll look it up.  If the pressure bleeds off too fast, you get vapor
lock and hot-start problems.   Any decent dealer or VW mechanic
would/should do that test given a hot-start complaint even if they
couldn't duplicate the problem.   Anyway, your 10-20 minute time-frame
sounds totally classic.  Once you verify that the pressure is leaking
away too fast, the trick is finding the source of the leak...(It's not
usually an external leak, but fuel finding it's way back to the tank
through the return lines when it shouldn't).

-Uwe-

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From gti-vr6-owner@dev.tivoli Sat Aug 15 21:21 CDT 1998
From: (Paul Bauer) <pbauer@MIT>
To: gti-vr6@dev.tivoli
Subject: [gti-vr6] Hot Starting
Date: Sat, 15 Aug 1998 22:17:11 EDT
 
[...]

  I would add the following: I bought a 95 GTI VR6 in Jan this year and
noticed the same symptoms when the weather got warmer. I was at the dealer
picking up plugs and asked if they knew anything about this and the
service manager remembered that the early 96 VR6 cars had a batch of fuel
pumps with bad check valves. There is a kit to fix this and takes about 10
mins and $21 to buy and install. It fixed my problem but I don't guarantee
it will fix yours. It might be worth trying if the tests Uwe suggests
indicate a fuel pump problem. The Bently manual shows how to do this.

Paul



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