99 motor vacuum leak


95RangerAK

95RangerAK

15+ Year Member

Joined
Feb 20, 2009
Messages
119
Points
3,101
City
Alaska
Vehicle Year
1995
Transmission
Automatic
i got a 99 ford explorer 4.0 in my 95 ranger and it has a vacuum leak somewhere, idles around 1500-2500rpms. i know when doing the swap that the explorer had vacuum operated hubs and so there was a extra line but i put a screw in that and taped it all up real good and nice. what else could be causeing my vacuum leak? any takers?
 
One of the easiest ways to locate a vacuum leak that is being difficult.

Get a propane torch. Don't light it. Start the truck. open the valve on the torch and wave it all over the suspect vacuum lines. When the unburnt propane gets sucked into the vacuum leak the engine will rev up some. there are other products you can use. Just about anything that sprays in a fine mist and is very flammable works.

Propane doesn't leave anything behind usually so its a good choice.
 
alrighty i will try that tomorrow... i shoulda used the smoke machine when i had access to it for school. dern. oh well yea i will try the propane thingy tomorrow and hopefully i can find it real quick like. thanks.
 
You must log in or register to reply here.

Sponsored Ad

TRS Events & Gatherings

Where We Were in 2025 – The Ranger Station

Latest posts

Featured Rangers

Want to see your truck here? Share your photos and details in the forum.

TRS Latest Video

Official TRS Merchandise

Follow TRS On Instagram

Latest Album Photos

IMG_4690.JPEG
IMG_4689.JPEG
IMG_4688.JPEG
IMG_4679.JPEG
IMG_4656.JPEG
IMG_4625.JPEG
IMG_4562.JPEG
IMG_4561.JPEG
IMG_4560.JPEG
IMG_4559.JPEG
IMG_4558.JPEG
IMG_4445.JPEG

Product Suggestions

Back
Top