adsm08
Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
- Joined
- Sep 20, 2009
- Messages
- 34,623
- Reaction score
- 3,613
- Points
- 113
- Location
- Dillsburg PA
- Vehicle Year
- 1987
- Make / Model
- Ford
- Engine Type
- 4.0 V6
- Engine Size
- 4.0
- Transmission
- Manual
- 2WD / 4WD
- 4WD
- Tire Size
- 31X10.50X15
I always at least try to get something to act up, or look around at the resources available to me for information that might point me in a direction. Even on intermittent issues.
Sometimes you do just have to let problems get worse before you can really find them, but I never tell people that up front.
I still think your issue is in the IWE system and in some way related to the check valve. Unplugging the IWE solenoid up by the brake booster is a quick, easy, safe test. If the noise sticks around it is something else, if it goes away it's somewhere in that system.
The other thing to consider, driving with the IWEs engaged hurts nothing as long as the T-case is still in 2wd. If they are the source of the noise the engagement rings on the actuators and the wheel hub are both getting chewed up each time.
Sometimes you do just have to let problems get worse before you can really find them, but I never tell people that up front.
I still think your issue is in the IWE system and in some way related to the check valve. Unplugging the IWE solenoid up by the brake booster is a quick, easy, safe test. If the noise sticks around it is something else, if it goes away it's somewhere in that system.
The other thing to consider, driving with the IWEs engaged hurts nothing as long as the T-case is still in 2wd. If they are the source of the noise the engagement rings on the actuators and the wheel hub are both getting chewed up each time.