96ExplorerSport
Well-Known Member
- Joined
- July 9, 2006
- Messages
- 119
- Reaction score
- 2
- City, State
- Pittsburgh PA
- Year, Model & Trim Level
- 96 X Sport 4.0L OHV, 4WD
Hi,
I have 96 Explorer Sport with 4.0 OHV engine. A month ago I replaced stock airbox with K&N FIPK kit. Since then I've discovered the following problem.
When the engine bay is hot at idle I can hear the noise coming from K&N kit. It sounds like a vacuum cleaner. The sound goes away as RPMs increase. The problem seems to be related to the engine bay temperature, not the engine temperature. It occurs only on hot days when the car idles w/o moving or moving slowly. Once the car starts moving at speads > 30mph, the noise completely disappears after a minute or so. There is no noise when the engine is cold or when driving around city/highway continously. I can always hear the noise on warm starts, when engine is still hot from previous driving and the car has been sitting for 5-10 minutes. If I pop up the hood, the noise goes away after a minute or so.
Any ideas? Can it be IAC? Problem seems to be related to the engine bay temperature. I am thinking about wrapping K&N pipe with a heat wrap. Maybe it'll help.
Thanks,
Sergey
I have 96 Explorer Sport with 4.0 OHV engine. A month ago I replaced stock airbox with K&N FIPK kit. Since then I've discovered the following problem.
When the engine bay is hot at idle I can hear the noise coming from K&N kit. It sounds like a vacuum cleaner. The sound goes away as RPMs increase. The problem seems to be related to the engine bay temperature, not the engine temperature. It occurs only on hot days when the car idles w/o moving or moving slowly. Once the car starts moving at speads > 30mph, the noise completely disappears after a minute or so. There is no noise when the engine is cold or when driving around city/highway continously. I can always hear the noise on warm starts, when engine is still hot from previous driving and the car has been sitting for 5-10 minutes. If I pop up the hood, the noise goes away after a minute or so.
Any ideas? Can it be IAC? Problem seems to be related to the engine bay temperature. I am thinking about wrapping K&N pipe with a heat wrap. Maybe it'll help.
Thanks,
Sergey