Vehicle missfire
#1 cause is the plug wires on this model,unless you have very high mileage,then change the plugs too.
If a single cylinder misfire, a trouble code should tell you which cylinder? Then, on that cylinder check fuel--spark--compression. If p0300 that is a problem common to all cylinders.
How long since a tune-up? Did you check for codes? Around here, some of the national brand auto stores will check codes for free, if there are any.
Is it noticeable at idle or driving down the highway? Both?
SOURCE: My 2004 pontiac montana wont start, need help ASAP!
no the transmission shift cable is streached and needs to be adjusted. you should be able to shift the van to neutral and start it in that gear. just watch when you park because it will roll away. use parking brake. if it doent start in neutral then your cable may be snaped and not noving the gear selector on trans at all
SOURCE: My 2004 pontiac montana wont start, need help ASAP!
your shift cable is stretched or broke. try starting in nutral. if this doesn't work you need to adjust or replace shift cable. this is a very easy fix but it should start in neutral.
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