99 Jetta VR6 Hard to Start - VW Forum :: Volkswagen Forum
MK4 Discussion area for the new fourth generation Golf IV, 337, R32, 20th and Jetta IV produced from 1998 to 2004.5 including Cabrio models.

 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 12-13-2008, 12:46 PM Thread Starter
Junior Member
Points: 3,400, Level: 36 Points: 3,400, Level: 36 Points: 3,400, Level: 36
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Mar 2005
Location: Lexington KY
Posts: 10
99 Jetta VR6 Hard to Start

Has anyone seen a solution to this one? After filling the car with gas it just doesn't want to start. I have to end up depressing to gas pedal to the floor and keep cranking then it finally starts (but rough) and then smooths out. After that it starts fine all the time till I have to fill up again. Any suggestioins really appreciated.

Just to add more data to the problem I'm trying to solve. If you leave the car running while refueling, the engine starts to run rough. It's almost seems that fuel in getting to the intake without going through the injectors. Maybe...back through the vapor recovery system... still baffled a bit.

Changed fuel filter already
ajwgator is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 12-13-2008, 01:54 PM
Junior Member
Points: 1,847, Level: 25 Points: 1,847, Level: 25 Points: 1,847, Level: 25
Activity: 0% Activity: 0% Activity: 0%
 
gtr3nos1's Avatar
 
Join Date: Dec 2008
Location: Danbury, CT
Posts: 251
Send a message via AIM to gtr3nos1 Send a message via MSN to gtr3nos1
read this bro.... Common issue
gtr3nos1 is offline  
post #3 of 12 (permalink) Old 12-13-2008, 02:09 PM Thread Starter
Junior Member
Points: 3,400, Level: 36 Points: 3,400, Level: 36 Points: 3,400, Level: 36
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Mar 2005
Location: Lexington KY
Posts: 10
Quote:
Originally Posted by gtr3nos1 View Post
read this bro.... Common issue
thanks, but other than after a fuel fill it starts and runs well.
ajwgator is offline  
post #4 of 12 (permalink) Old 12-13-2008, 03:11 PM
Junior Member
Points: 1,847, Level: 25 Points: 1,847, Level: 25 Points: 1,847, Level: 25
Activity: 0% Activity: 0% Activity: 0%
 
gtr3nos1's Avatar
 
Join Date: Dec 2008
Location: Danbury, CT
Posts: 251
Send a message via AIM to gtr3nos1 Send a message via MSN to gtr3nos1
have u cleaned your fuel injectors? i use this once a month... STP® - Super Concentrated Fuel Injector Cleaner
gtr3nos1 is offline  
post #5 of 12 (permalink) Old 12-13-2008, 05:37 PM Thread Starter
Junior Member
Points: 3,400, Level: 36 Points: 3,400, Level: 36 Points: 3,400, Level: 36
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Mar 2005
Location: Lexington KY
Posts: 10
Quote:
Originally Posted by gtr3nos1 View Post
have u cleaned your fuel injectors? i use this once a month... STP® - Super Concentrated Fuel Injector Cleaner
Haven't yet, but seems to me if it was an injector problem it would be hard to start all the time, not just after refueling. As I said once I get it started after refueling it starts fine all other times. It only does this after refueling.
ajwgator is offline  
post #6 of 12 (permalink) Old 12-13-2008, 05:57 PM
Junior Member
Points: 1,847, Level: 25 Points: 1,847, Level: 25 Points: 1,847, Level: 25
Activity: 0% Activity: 0% Activity: 0%
 
gtr3nos1's Avatar
 
Join Date: Dec 2008
Location: Danbury, CT
Posts: 251
Send a message via AIM to gtr3nos1 Send a message via MSN to gtr3nos1
i'm wondering if it could possibly be the purge valve?
gtr3nos1 is offline  
post #7 of 12 (permalink) Old 12-13-2008, 11:52 PM Thread Starter
Junior Member
Points: 3,400, Level: 36 Points: 3,400, Level: 36 Points: 3,400, Level: 36
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Mar 2005
Location: Lexington KY
Posts: 10
Question

Quote:
Originally Posted by gtr3nos1 View Post
i'm wondering if it could possibly be the purge valve?
I have been reading up on the fuel storage, supply, EVAP, and LDP system in the Bentley Manual. Doesn't look like the VR6 doesn't have a purge valve system. The Leak Detection Pump (LDP) may be what you are referring to. Still not finding anything that would only affect starting after refueling. This one is giving me fits.....
ajwgator is offline  
post #8 of 12 (permalink) Old 01-01-2009, 12:46 PM Thread Starter
Junior Member
Points: 3,400, Level: 36 Points: 3,400, Level: 36 Points: 3,400, Level: 36
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Mar 2005
Location: Lexington KY
Posts: 10
Update: Did another fillup and noticed this after removing the nozzle. You can hear a gurgling sound from the gas tank like fuel is still moving somewhere after refueling has stopped. It lasts for 3-5 minutes. Could it be that some of the fuel is flooding into the vapor recovery system while refueling instead of going into the tank? Not sure but almost sounds as though the fuel is running back into the tank from somewhere.
It still doesn't want to start but really tries hard to the point the engine is spinning fast enough as there is no drag on the starter motor at all (if that make sense). Once it gets to that point, a 1/4 push on the gas pedal make it go on and finally start but a tad rough for a few seconds. After that first time after refueling, no starting problems at all. Doesn't make any common sense does it!
ajwgator is offline  
post #9 of 12 (permalink) Old 03-20-2009, 12:36 PM
Junior Member
Points: 2, Level: 1 Points: 2, Level: 1 Points: 2, Level: 1
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Mar 2009
Posts: 1
Im totally having the same problem!!! My 99.5 Jetta will not start after I pump gas. It's so embarrassing cause i'll be sitting in my car after a fill up trying to crank it over while pumping the gas pedal. Itll take about 5 or 6 attempts to get it to start. And sometimes i have to keep the gas pedal down in order to keep it from stalling on me after I start it. I'm having the throttle body replaced today. I was told by the dealership that I have 5 errors coming up on the diagnosis report that all point towards that part. Hopefully this will fix it!!!
cadler25 is offline  
post #10 of 12 (permalink) Old 07-21-2009, 10:05 AM
Junior Member
Points: 2,800, Level: 32 Points: 2,800, Level: 32 Points: 2,800, Level: 32
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Nov 2005
Location: New Brunswick, Canada
Posts: 17
Fixed yet?

Did you ever get this fixed? I just bought a 99.5 2.0 golf for my wife and it does the exact same thing. When I scanned the ECU the only error code was a P0455 which was a Large leak in the evaporative emissions system. Thanks,

Fred

life is short ride hard
magna77 is offline  
post #11 of 12 (permalink) Old 08-13-2009, 09:40 PM
Junior Member
Points: 10, Level: 1 Points: 10, Level: 1 Points: 10, Level: 1
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Aug 2009
Posts: 4
Having the same problem w/out the gurgling of gas at the tank, i have also noticed i have the problem after my car sits at work in the hot parking lot all day. When the temp outside is cool the problem goes away. Car starts perfectly in the morning. No CEL or pendings.
storimino is offline  
post #12 of 12 (permalink) Old 10-21-2009, 10:47 PM Thread Starter
Junior Member
Points: 3,400, Level: 36 Points: 3,400, Level: 36 Points: 3,400, Level: 36
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Mar 2005
Location: Lexington KY
Posts: 10
Finally Fixed!

Finally got the problem fixed! Turns out it was the (N80) Purge Valve. The old one failed in the open position and as a result allowed fuel fumes from the carbon canister to flow continusly into the intake manifold. During refueling, the amount of fuel fumes would actually flood the engine. I purchased an new Bosch purge valve from Euro Parts Direct for $45. Great price, dealer wanted $138. Installed the new valve, went and refueled the car, and it started right up! So glad to have this one filed away!
ajwgator is offline  
Sponsored Links
Advertisement
 
Reply

  VW Forum :: Volkswagen Forum > Volkswagen Models > MK4

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the VW Forum :: Volkswagen Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
99 Jetta hard to start after fullup ajwgator MK3 4 12-06-2011 11:41 AM
Hard start and rough idle 90VWPAIN MK2 5 06-27-2009 08:08 AM
Hard Start Up's, and lazy take off. 92_Diesel MK2 5 04-08-2007 09:51 PM
Jetta III hard first start of the day GBeaulieu MK3 5 09-16-2006 09:17 AM
1994 2.0 hard hot start greatscott73 MK3 15 08-09-2006 05:44 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome