Diagnosing a rabbit issue

mtb123 · Posted: Wed Apr 09, 2014 8:38 pm Post subject: Diagnosing a rabbit issue

My father in law asked me to post a question about his convertible rabbit. He is experiencing intermittent loss of power that feels a bit like a fuel issue but the mechanic he took it to (not a VW mechanic) could not figure out the issue. Usually, my father in law has to pull over, let it sit for a few and then he can restart and carry on. Not a lot of info I know, but any ideas? Thanks.

glutamodo · Posted: Wed Apr 09, 2014 10:39 pm Post subject:

What year is it?

mtb123 · Posted: Thu Apr 10, 2014 8:53 am Post subject:

glutamodo · Posted: Thu Apr 10, 2014 1:46 pm Post subject:

Okay, well if it's not been checked yet, I'd start out seeing if the transfer pump in the fuel tank is going out.

kamzcab86 · Posted: Thu Apr 10, 2014 8:59 pm Post subject:

helowrench · Posted: Sun Apr 13, 2014 5:51 am Post subject:

#1 purchase a new fuel filter.
#2 remove old fuel filter. beware of fuel under pressure, and it will spray.
#3 drain the residual fuel from the inlet side of the filter into a glass jar.
If there is any debris, it tells you a lot

#4 into a large container, you can check the free flow rates of the pumps.
jumper across the fuel pump relay for XX seconds and check the amount of fuel against it. If not within spec you have a pump problem.

If you found water or debris in the fuel, add some alcohol to the gas tank, and keep doing #4 until the water or debris no longer comes out.

(usually fuel problems in the CIS cars are related to a clogged filter. The filter element is so freaking fine to protect the fuel metering unit. Also, the filtration fibers will swell shut upon any water found, and cease fuel flow.)

Rob
_________________
Current VWs:
70 bug vert for wifey
73Thing bucket o rust
73 914 1.7
12 Passat 2.5 Highway cruiser

glutamodo · Posted: Sun Apr 13, 2014 8:11 am Post subject:

I think it's Digifant starting in 1990...

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kamzcab86 · Posted: Sun Apr 13, 2014 8:46 am Post subject:

helowrench · Posted: Mon Apr 14, 2014 6:10 am Post subject:

same style of fuel filter. same issues remain
_________________
Current VWs:
70 bug vert for wifey
73Thing bucket o rust
73 914 1.7
12 Passat 2.5 Highway cruiser

mtb123 · Posted: Mon Apr 14, 2014 2:59 pm Post subject:

Thanks for the info so far, I will pass this along and see how my father in law does.


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