1999 GMC Savana Random misfire code P0300

Tiny
BRONCO_67
  • MEMBER
  • 1999 GMC SAVANA
  • 140,000 MILES
I started having random misfires but only when driving into a very strong wind, either head on or from a crosswind where it angling into the front of the van. Its now starting to happen with a lite wind. When it happens it feels like the transmission is going to fall out.

complete tuneup 30,000 miles ago. New transmission 15000 miles ago

any help would be appreciated.


Dennis

Do you
have the same problem?
Yes
No
Saturday, June 8th, 2013 AT 12:19 AM

1 Reply

Tiny
HMAC300
  • EXPERT
Scan for codes and check fuelpressure first
Was this
answer
helpful?
Yes
No
Saturday, June 8th, 2013 AT 8:07 AM

Please login or register to post a reply.

Recommended Guides