My 1999 E250

I have the A/C coming out of the defrost problem - only out of the dash vents when decelerating.

There is a very good vac line bypass article here somewhere with a lot of pictures and instructions. Thought I had it saved. Can't find it on the site here.

Put up with it last year. Want to do the fix for this year.

Can someone let me know where it is ? Thanks a lot.

 

Tech Folder

https://www.ford-trucks.com/forums/1...efrosters.html


https://www.ford-trucks.com/forums/1...-problems.html

 

Those are the one's of course. I want to order the Delco reservoir with the check valve. It has the part number in the thread.

I appreciate you help.

 

How about here, Steve?
I had the same problem last year. I found the vacuum line from the engine on the firewall, just above the evaporator and blower motor housing. I couldn't find it underneath the truck, so I found where it entered the cabin and began pulling. As everyone has stated the rubber hose that connects to the vacuum reservoir was crumbling apart. Rather than try to replace the hose, I simply ordered a new vacuum reservoir from Amazon for about $20 and ran a new hose to the vacuum line that comes off the engine. I tucked the new vacuum reservoir up under the dash (as best I could) in the passenger footwell. I secured it with double-sided tape. The new reservoir is triangular, so it fit well. It is an AC Delco #10403762.

https://www.ford-trucks.com/forums/1...l#post13326273

 

Fantastic ! Good instructions on that thread too. I'm ordering the AC Delco part in a day or two.

Thanks for taking your time to post.