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Subject:'88 lurching at 2500-3000 rpm
From:Shawn Wright, SMUS Network Analyst
Date:Fri, 8 Mar 1996 16:16:17 PDT

Drove the new baby to work today - first time in some traffic - and 
noticed some lurching in 2nd & 3rd gear at around 2500-3000 rpm. ie: 
trying maintain a steady speed in slow traffic would result in a 
surging or lurching motion. Accelerate to a little over 3000 & it 
would mostly go away.
It seems to be related to part throttle power delivery - ie: 3/4 or 
more accel to 4000 in each gear is smooth, but a "lazy" foot with 1/2 
throttle or so causes a similar lurching during accel.

I have a new cap & rotor which I have not tried yet, and plugs are new, but I'm 
wondering if anyone else has encountered this - it doesn't seem like 
an ignition thing to me, more like timing advance or fuel delivery. 
Any ideas?

Note: This is not the mystery power loss at speed problem (I don't 
think anyway) and the van has had the harness put on by a dealer a 
while back to fix that.

Shawn.