1999 Chevy Silverado why would my engine run got at idle an

Tiny
ROBERTBASSIN5
  • MEMBER
  • 1999 CHEVROLET SILVERADO
Engine Performance problem
1999 Chevy Silverado 6 cyl Two Wheel Drive Automatic

why would my engine run good at idle an bad when give it gas? But after about 20min of driving it gets better. I have ran injector cleaner through the gas tank, new fuel pump, new fuel filter, new plugs, new wires, new cap and rotor. So any ideas?
Tuesday, March 2nd, 2010 AT 3:08 PM

2 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hi, if your idling in park or neutral, not much load on the engine, that changes, when you put it in drive. I'd use a gage and check fuel pressure. If you have the spider fuel system and it needs cleaning, injector cleaner in the gas tank, may not help much?
Was this
answer
helpful?
Yes
No
Tuesday, March 2nd, 2010 AT 3:43 PM
Tiny
ROBERTBASSIN5
  • MEMBER
  • 6 POSTS
This problem exist in park.
Was this
answer
helpful?
Yes
No
Tuesday, March 2nd, 2010 AT 4:03 PM

Please login or register to post a reply.

Related Engine Idle Low Content

VIEW MORE