2000 4.0 SOHC - Stumbles on warm start, but then smooth. What to clean? | Ford Explorer Forums - Serious Explorations

  • Register Today It's free!

2000 4.0 SOHC - Stumbles on warm start, but then smooth. What to clean?

BTR

Well-Known Member
Joined
April 1, 2011
Messages
337
Reaction score
146
City, State
MARIETTA, GA
Year, Model & Trim Level
2000 XLT 4.0 SOHC 4DR 2WD
2000 4.0L SOHC 136,000 miles

When Starting a Cold Engine
It always fires up immediately, idles properly, and runs perfectly.

When Starting a Warmed-Up Engine
- With no gas pedal applied, it stumbles on startup and doesn't start. It requires more than one attempt to start.
- If 1/8 - 1/4 gas pedal is applied (and held) during startup, then it fires right up.
- In both scenarios, once it starts, it idles properly and runs perfectly.

Somewhere in the forum, I recall reading this scenario. The solution was to clean a certain intake part. I can't find the post, nor do I remember which part. What intake part do I need to clean? Thanks for your help.
 






What intake part do I need to clean?
Your thinking of the Maf sensor worth it to clean but I think your temp sensor is bad only way to know is a scan tool or just replace it in fact if you have a plastic thermostat housing replace it with a metal one
 






Back
Top