hesitation question

["Rick Lackner" <rsl@kendra.com>]

I'm having a bit of problem with the rocco running after it sits a 
bit after it's warmed up or if stopped in traffic.  It seems to buck 
after shifting and then accelerating.  It will usually only do 
this shifting to 2nd and 3rd, only noticed it once or twice 
shifting into 4th, never going to 5th. Once it's going a bit it stops 
doing that and runs fine.  It was worse before replacing the fuel 
filter.  I thought I read somewhere there's a screen near the fuel 
pump that could get clogged?  I've been running Chevron Supreme 
almost exclusively in it, but thinking of dumping a can of Techron in 
it anyway.  The idle and power seems no different than before, but ya 
never know if theres something a wee bit clogged. It will 
occaisionally stall at idle  but always fires back up right away.  If 
you have any ideas I'd appreciate it.

It's an 85 8V.  Just put new plugs in, checked cap and rotor (ok), 
new fuel filter, air filter ok, all this done after the problem 
surfaced.  Looked at the vacuum lines and electrical connections, 
looks good.  It runs just as good as it did before the problem 
surfaced a couple weeks ago, except it has that annoying bucking when 
hot and sitting a bit.  I also noticed that when it bucks, if I take 
the rpms up past maybe 5K that it will "drop out".  If I just take it 
easy on it for a few minutes, then I can rev it to redline no 
problem.

We're planning to take it on a holiday drive to MN and maybe PA 
before heading back home (WA) and while I've had no probs as long as
it's running on the highway, I'd feel a bit more secure if I had this
figured out and solved before we leave in 2 weeks.

I'll be tinkering with it some more tomorrow, maybe someone has ideas 
on what to look at?  Thanks for any help you can offer.

Rick
rsl@kendra.com
Richard.Lackner@entex.com
85 Scirocco 8V  Wolfsburg
Everett, WA

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