00mountaineer4.0
Member
- Joined
- May 14, 2009
- Messages
- 31
- Reaction score
- 0
- Year, Model & Trim Level
- 98 mountaineer 5.0 2wd
Hi all, i have a few questions.
My mountaineer when its cold will rev up then idle down and lope really hard and sometimes die. It will not hold a steady idle, but once it warms up it only fluctuates around 100-200 rpm, but still drives me crazy. I cleaned the valve on top of the intake, and nothing changed. I am thinking maybe intake gaskets? i do not think its head gaskets because it does not white smoke, and still has a lot of power. Its not showing a check engine light. What should i do first before i spend money on the wrong thing?
Also, i see these "performance" chips on ebay claming upwards of 50hp gains with a simple plug n play, are these real, or should i stay away from them?
Can anyone point out a larger throttle body for the 4.0 soc (2000 yr model) and what cold air intake would work, i was looking on ebay under explorers, and i didnt know if a sport trac was the same under the hood?
Thanks for reading!
My mountaineer when its cold will rev up then idle down and lope really hard and sometimes die. It will not hold a steady idle, but once it warms up it only fluctuates around 100-200 rpm, but still drives me crazy. I cleaned the valve on top of the intake, and nothing changed. I am thinking maybe intake gaskets? i do not think its head gaskets because it does not white smoke, and still has a lot of power. Its not showing a check engine light. What should i do first before i spend money on the wrong thing?
Also, i see these "performance" chips on ebay claming upwards of 50hp gains with a simple plug n play, are these real, or should i stay away from them?
Can anyone point out a larger throttle body for the 4.0 soc (2000 yr model) and what cold air intake would work, i was looking on ebay under explorers, and i didnt know if a sport trac was the same under the hood?
Thanks for reading!
