I recently purchased a 1997 GMC Sonoma with 150.

Tiny
ANONYMOUS
  • 1997 GMC SONOMA
  • 150,000 MILES

I recently purchased a 1997 GMC Sonoma with 150,000 Miles on it. After purchasing it I decided to replace and gap the spark plugs, not yet the wires. After doing this shortly after the truck has developed a horrible jerking in low gears, especially first gear. Also while on the highway when I release the gas there is a slight jerk as well for a second. Could this be due to bad plugs or bad plug wires? I wanted to check your knowledge before I tried anything. Thanks!

Thursday, January 3rd, 2013 AT 5:15 PM

1 Reply

Tiny
HMAC300
  • EXPERT
  • 47,000 POSTS

It could be wires or dist cap but recheck plug gap as well. Scan for codes to see if there is anything there

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Thursday, January 3rd, 2013 AT 6:04 PM

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