Question about Ford Bronco II

1 Answer

2 inlet pcv valve on 1985 ford bronco II can't find 2nd vacuum hose location

My bronco had been stalling, but everytime I go to troubleshoot it, it works fine. As I was tinkering on it today found a vacuum leak at the pcv valve, I cover the inlet with my finger and the engine runs a whole lot smoother, but cannot find where the vacuum hose that goes to it is at. do I have the wrong pcv valve or missing hose?

Posted by on

  • mgpeebles86
    mgpeebles86 Apr 21, 2013

    the lower larger inlet on the pcv valve has a hose from carb or intake, can't remember right off hand, but the top smaller inlet has nothing and is constantly sucking air, just bought this truck a few weeks ago, not real familiar with carb engines

  •  Mike McDonald
    Mike McDonald Apr 22, 2013

    Just plug the unused port



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 149 Answers

You have the correct pcv, the second port is not always used and the port that isn't used is simply plugged off. New pcv valves even come equipped with the block off plug.

Posted on Apr 21, 2013


5 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

  • 239 Answers

SOURCE: pcv valve

The positive Crank Case Ventilation (PCV) is coming from the intake manifold and usually goes to the Valve cover On that year it could be in the back of on the side of the Rocker covers ( Valve Cover) find the Vacuum line coming out of your intake and follow it, It should lead you to the Pcv

Posted on Jun 17, 2008

  • 984 Answers

SOURCE: Replaced PCV Hose due to vacuum leak, idle correct

If it is the same engine design as the F-150 ( think the '98 was still the 2V V-8 ) it could be the IAC ( Idle Air Control ) is gummed up.

The F-150 it is mounted on the back of the Throttle Body ( have to take off the plastic throttle body cover to see it ), held on with 2 bolts with 8mm heads ( could be 9mm ??).

Worth taking a look, also take a look at the VAC line to the back of the throttle body, and check that the IAC connector did not get unplugged or the wires damaged from the other vac line change

Posted on Dec 03, 2009

Testimonial: "Will do today and respond back, I have spoken to a few Ford guys, clean the T.B., check the IAC, etc. Thanks so much!"

  • 3433 Answers

SOURCE: 2004 Mazda MPV vacuum line from pcv valve and

You have the wrong type hose on the pcv valvle. It isn't vacuum hose.

Posted on Nov 12, 2009

Testimonial: "thank you you have been very helpful i understand now but the hose that is on the new pcv valve is a vacuum hose "

  • 242 Answers

SOURCE: 2006 pt cruiser idles high with no pcv valve hose connected

Replace the PVC valve, it's probably clogged.

Posted on Nov 21, 2008

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Where is bleeder valve for slave cylinder located on my 1987 ford bronco II

It is on top of the bell housing,it looks just like a brake bleeder ,you bleed it in the same way as brakes.jar and long hose,push the clutch peddle down with hose in jar,hold peddle down,open the bleeder valve,you will hear bubbles in fluid,close valve.repeat it 3 times,peddle will get stiff if hydraulics are good.

Jul 16, 2015 | 1987 Ford Bronco II

1 Answer

Ford bronco stalls when it get hot

Could be a bad ignition coil or the TFI module that controls the coils' circuits.

Jun 28, 2015 | 1985 Ford Bronco II

1 Answer

Pvc replacement

Unless a vacuum hose is rotted away or loose,
a pcv valve will last the life of the vehicle,just
clean it inside with solvent.

May not be a pcv problem that causes it to stall

Mar 15, 2014 | 1988 Ford Bronco II

1 Answer

Two lines coming from pcv valve, where does small line go

If there are no loose lines laying near it , It may have just had a vacuum cap on it .

Dec 22, 2013 | 1986 Ford Bronco II

1 Answer

My 1985 ford bronco 2 dies when coming to a stop and trying to back up, what could cause this?

well it is nearly 30 and has to be one of the few left around. were it mine i would check for vacuum leaks and think about a new distributor.

Jul 14, 2011 | 1985 Ford Bronco II

1 Answer

Where does the shift solnoid on a 1985 bronco

on the rear of the transmission there is a metal stem sticking out of the rear

Feb 12, 2010 | 1985 Ford Bronco II

1 Answer

Location of fuse box ford bronco 2 1985

fuse box would be located under the driver side dash on the left

Jan 24, 2010 | 1985 Ford Bronco II

1 Answer

1990 ford 2.9l in a bronco II- it has no power and oil is pumping up and leaking out the top of the oil dipstick. was told it has a blown head gasket but no water in the oil and the engine does not smoke....

Remove and plug the PCV valve hose with bolt to check and see if this is the issue, many times the crankcase is not venting properly and the PCV valve needs replacment it is inexpensive enough just replace the PCV valve located on one of the valve covers it has a hose going to it.

Sep 06, 2009 | 1990 Ford Bronco

1 Answer

Put in themostat


The thermostat is located in the housing at the end of the lower radiator hose. It sits in part of the water pump. Hope this helps

Apr 05, 2009 | 1987 Ford Bronco II

1 Answer

Pcv valve

on the valve cover

Nov 08, 2008 | 1989 Ford Bronco II

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

297 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

79077 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

5677 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides