Hi,
I have a 1996 E350 Club Wagon with less than 75k miles. It has a 460 ci engine. The idle is high and it pings under load even with 93 octane gas. The van has been off the road for 3 years but it was running the same before. I am thinking that the timing may be off but not sure. Any ideas?
One minor thing is that the "transparent" plastic over the odometer has deteriorated to the point I can't read the mileage. Is this common on Ford trucks from this era? And can the plastic be easily replaced with new material so the odometer can be easily read?
Thank You

 

Your best bet might be salvage yard and you can how to remove the dash when ready to do yours..

Look for a vacuum leak. Oxygen sensor may be reporting lean mixture to PCM and PCM is increasing fuel resulting in high idle speed.

 

Index page above, pdf attached below.

To restore your cluster cover, if there is no crack, just do it like you restore your headlights, but you probably want to begin with 1500 or 2000 grit. If you have a polisher, just DIY it's way better than buying a used one from junk yards. you can wet sand 1500->2000->3000->5000->7000 grits, you can use plastix after, you can restore it to like brand new.

 

Hey there, sounds like a frustrating issue with your Bronco! Since you’re seeing the same symptoms with both the new Blue Streak MAF and the old one, and you’re getting odd flow readings (.11 to .19 g/s) with the engine off, it’s likely the MAF sensor or its circuit is the culprit. The fact that it runs better with the MAF unplugged suggests the PCM is reverting to default settings, bypassing a faulty MAF signal.I’d start by checking the MAF wiring harness for loose connections, corrosion, or shorts, especially since you’re getting flow readings with the engine off—that’s not normal and could point to a wiring issue or a faulty sensor. Also, inspect for vacuum leaks between the MAF and throttle body, as unmetered air can cause hesitation and bucking. Since it’s worse when cold and bucks at idle when hot, double-check the air filter and intake for obstructions or oil contamination (like from a K&N filter).