jeckyl11@[EMAIL PROTECTED]
wrote:
> On Apr 30, 8:37 am, "BillM" <billma...@[EMAIL PROTECTED]
> wrote:
>> "thirdeye" <Illsley1...@[EMAIL PROTECTED]
> wrote in
>>
messagenews:92563bf0-0944-4f33-b6d9-68e5d11c0444@[EMAIL PROTECTED]
>>
>>> I have a 1989 chevrolet k 1500 4x4 truck with
>>> the 4.3 L TBI Engine.
>>> When accelerating, the truck seems to
>>> stumble/hesitate. It almost
>>> feels like the truck is bucking up the road.
>>> It will do this if you
>>> hit the gas hard, but stops when you let off.
>>> Put new plug wires on
>>> about 2 months ago. any idea what the problem
>>> could be??
>> Just had a similar problem with a 94 K1500 5.7.
>> Idled OK, cruised OK, accelerated
>> OK if I was very gentle. Any normal
>> acceleration bucked/stumbled badly.
>>
>> It's probably ignition. Plugs, wires,
>> distributor cap, rotor. Mine was distributor
>> cap.
>> The center tower contact was melted and loose
>> and the coil wire was fried.
>>
>> DO NOT use a cap/rotor with aluminum connectors.
>> Spend the money for brass!
>>
>> Bill
>
> having same problem w/94 K1500 replaced plugs, wires, fuel filter,
> distributer cap & coil wire. When I first start up and 1st mile or so
> no problem, then starts stumbling unless real slow with accelerator.
> Going to replace coil while I wait for a reply.
> kirk
My 1984 GMC Jimmy High Sierra stumbles while accelerating from about 40
to 45 when in overdrive, but does okay when in regular drive.
Terry
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