This effing Jetta

rgaus

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Not sure if this helps but I have a 1998 Jetta III with 255K. I have done all the maintenance on this car.

Sounds like something I ran into earlier this year. Not sure if the IV has a white thermostat valve on top of the fuel filter but the III does. This valve went bad and was allowing the suction side of the IP pull air from the filter's return side.

The car would act like starving for fuel and on long weekends was hard to start 30-60 second cranks when normal was two rev and running. What happens the fuel in the lines where draining back to the tank.

Was not getting any MIL. What clue me in was all the air bubbles in the IP suction line from the filter. Confirm the valve was bad by installing clear tubing between the tank and the filter suction line.

Bob G.
 

Oledirtypearl86

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Not sure if this helps but I have a 1998 Jetta III with 255K. I have done all the maintenance on this car.

Sounds like something I ran into earlier this year. Not sure if the IV has a white thermostat valve on top of the fuel filter but the III does. This valve went bad and was allowing the suction side of the IP pull air from the filter's return side.

The car would act like starving for fuel and on long weekends was hard to start 30-60 second cranks when normal was two rev and running. What happens the fuel in the lines where draining back to the tank.

Was not getting any MIL. What clue me in was all the air bubbles in the IP suction line from the filter. Confirm the valve was bad by installing clear tubing between the tank and the filter suction line.

Bob G.

Thanks Bob I think I got the air intrusion figured out but do you have pics of this valve or is it on the tank under the back seat my fuel filter is in the engine bay up front Passenger side and I got the timing belt off so I can finish getting the IP off but my crank times for the past few were always 30 plus seconds and if it was cold even worse even after a set of glow plus and a harness
 

Oledirtypearl86

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The valve goes here - Circle in RED...

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Oh yeah that dirty SOB I replaced the o rings and greased with a heavy grease ah and used a thicker o ring but I'll definitely check it out thank you
 

Big Daddy John

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Lol not yet I figured it's the ip due to a some filings on the quality adjuster magnet I worked on it a bit this weekend pulling the pump for an extange but got called out and was unable to finish but I'll post the fix as soon as I get the pump and installed
Definitely gotta keep us posted. Done got me interested now!
 

Oledirtypearl86

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So been tearing into the effing Jetta tonight and couldn't find any of my specialty tools for got when I did the timing belt last so just been doing what ever works and I found a come along auctually works better and the adjustment is faster but I got a extange for the IP and going to do the water pump and timing belt while I got it all tore down and going to change up the fuel line set up I noticed that the rubber lines were a little dry rotted but I'll keep you all posted and pro ibly need some help at some point

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jaed_43725

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You need to get rid of the egr garbage and straight pipe the exhaust. Your entire exhaust system is closedc. That's the fix
 

Oledirtypearl86

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You need to get rid of the egr garbage and straight pipe the exhaust. Your entire exhaust system is closedc. That's the fix

I do have the egr deleted and iv been mulling aound cutting the muffler and cat off maby I'll do it while it's down maby the wife will let me cut a hole in the hood do a 3inch stack and a flapper
 

Oledirtypearl86

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So wife shot down the hood stack but agreed on a strait pipe and I finally got the pump off it's really not to bad just a lot of working with no space also I hate them red dust caps the ones that I have are a little small so they just want to pop off and I have a hand full I need fish out now but hopefully I'll get it all put back together soon
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Big Daddy John

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I do have the egr deleted and iv been mulling aound cutting the muffler and cat off maby I'll do it while it's down maby the wife will let me cut a hole in the hood do a 3inch stack and a flapper
Surprise her, go with the stack!
 

Oledirtypearl86

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Got the IP today for the effing Jetta @Thewespaul did a great job. With a super fast turn around and got my hopes up I was wanting to taste expensive beer
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But I'm just as happy with the IP
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Thanks againe Wes and I hope to get it back together this weekend just wateing on some bolts for the timing belt idlers if they don't show up by tomorrow I'm using some grade 8 bolts and blue locktite
 

Thewespaul

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I thought you’d get a kick out of that one, that cooler’s been everywhere. You’ll see a couple different fuel shops names on it, we’ve been sending cores to each other with that thing for years. Your pump was a good fit, hope it fixes the Jetta up for a long time!
 

Oledirtypearl86

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Yeah I did see that and am going to send it back with a core for ya and I hope it fixes it too I'm hopeing this is the last timing belt and all that comes with also if I have to do it againethat will be over 350k miles on the car oh what's the life expectancy for them Bosch pumps I know the db2 is around 100k
 
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