No throttle after replacing coil and plug?

2006 MERCURY MOUNTAINEER
170,000 MILES • 4.6L • V8 • 4WD • AUTOMATIC
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SONJALYNN
  • MEMBER
  • 1 POST
my vehicle was misfiring on number 8 cylinder. put a new coil and plug in took positive cable off for 30 seconds then started it and had no throttle why?
Aug 25, 2021 at 9:04 PM
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MASTER ASE TECH
  • ✓ASE Certified Mechanic
  • 82 POSTS
  • ASE Certified Mechanic
Hi, my name is Dan.

Any chance that something was left unplugged?
Do you have any codes stored? Here is a guide that will help with this.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Sometimes you can have codes yet no check engine light on.
I've attached a picture of the connector for the throttle actuator. The yellow/violet wire is your power, the blue/green is the ground. Check for power and ground on both using this guide.

https://www.2carpros.com/articles/how-to-check-wiring

, let us know what you find.

Thanks
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Aug 26, 2021 at 10:42 AM
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