1998 Chevy Silverado Heat related shaking at idle

Tiny
AMILLER12
  • MEMBER
  • 1998 CHEVROLET SILVERADO
Shakes or Wobbles problem
1998 Chevy Silverado V8 Automatic 137000 miles

My Silverado is having issues shaking at idle, in all gears altho a little less in Park. However it only does this after the truck has been driven approx 30 miles, and there is no noticable issue when driving, only when I stop such as at a stop sign. Shortly before this started I hit a large pot hole and since then my gas gauge has had a viberating issue. Theres a slight sulfer smell and gas smell. It throws random misfire codes and an emissions code. - So far Ive had a new exhaust system installed, new distributer & cap, the injectors have been cleaned, my gas tank has been dropped and all lines checked. Any ideas?
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Friday, March 26th, 2010 AT 12:17 AM

1 Reply

Tiny
RHALL77
  • MEMBER
Check and see if that truck has an egr valve. If it does, remove it and see if the pintle is sticking open. If so, replace it. Also check and see if the fuel pressure regulator is leaking. If it is, replace it. That could also cause your concerns.
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Friday, March 26th, 2010 AT 9:27 AM

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