Question about Ford Explorer

1 Answer

How do i check for a vacuum leak? - Explorer Ford Cars & Trucks

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 31 Answers

You need a vacuum tester with a gauge and test all your vacuum ports with it. You will also need to know what exactly each vacuum port is used for and how it's supposed to respond to a vacuum tester to know if it's working correctly.

Posted on Aug 05, 2010


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Could a vacuum leak cause right bank #1and bank 2 to run lean?

Running lean indicates too much air (like a vacuum line leak or an intake manifold leak) or not enough gas (like low fuel pressure or clogged injectors)

I would check the fuel pressure. Autozone and others will loan or rent fuel pressure testers. If fuel pressure is correct, purchase a vacuum gauge for about $15-$20, and hook it to a manifold vacuum tap. If your vacuum reading at idle is less than 17-22 inches vacuum and steady, then you have a vacuum leak. It is a great diagnostic tool-tells you quick if there is an air leak somewhere. Here is a link about using a vacuum gauge:

If you vacuum reading is good, check the injectors.

Jan 28, 2015 | Cars & Trucks

1 Answer

P0442-Evaporator emission control system leak(small leak) P0455-Evaporator emission control system leak(gross leak) Have replaced gas cap with Dodge cap from dealer.

The purge solenoid is by the engine and is connected to the vacuum system. Check the vacuum lines going to this and the lines that may be connected to the vacuum port it comes from. Check for seals on the solenoid if it is directly in the intake manifold. Other things to check are the lines (plastic) that go to the charcoal canister and fuel tank. If the light has been on for a while I would start with the pugre solenoid. If you have a vacuum leak there it would go from small to gross.
Small leaks are checked by the ECM constantly, gross leaks are some that has broke/cracked.

Jun 28, 2011 | Dodge Grand Caravan Cars & Trucks

2 Answers

I have hard break peddle with little breaking power. I checked the vacum pump a found 13 inches of vacum. the hose removed from the vacum booster will **** your finger to it with motor running. the truck...

Hello, Check other Vacuum lines for leaks. If you have a 4x4, they can have Vacuum operated hubs and a leak anywhere will draw down the Vacuum. I found most pumps running at about 21psi. Check for a Vacuum Reservoir. The older models used one looking like a coffee can and they would rust on the bottom and leak.

If you take off a vacuum line and use a hand vacuum pump, you should easily find a leak on one of the remote lines. Another test idea is to remove the Vacuum pump lines, put in soapy water, and pressurize with about 3 PSI. Any vacuum leaks will blow bubbles and soapy fluid. Its your choice on what to do. I would reserve the soapy water for a line I find to leak with a hand Vacuum pump.

Many of the people wih your problem replaced the vacuum pump and were good to go. But if you can measure the vacuum and find the leak, you may save money on a part you do not need.

Jun 08, 2011 | 1996 Ford F350 Crew Cab

1 Answer

I hear big vacuum leak on 2001 elantra not any hoses

If you can "hear" a vacuum leak then the performance of the car would be greatly affected and the engine would idle much higher than normal. Normal idle speed is around 800-1000 rpm, Check you dash tachometer. If you have a vacuum leak the idle will go up to 1200-1500 rpm.
There are lots of places beside hoses that can leak vacuum such as the EGR valve or around intake manifold. But check that rpm's first to confirm what you are hearing is a vacuum leak.
You can also purchase a vacuum gauge form your local auto parts store. they cost around $20.00+. The gauge should read a steady 15-20", if less, then a leak is indicated

Feb 06, 2011 | 2001 Hyundai Elantra

1 Answer

After starting, idle will not drop below 1500 rpm engine races. apparent vacuum leak. how do I locate this leak?

Easiest way to check for a vacuum leak is to spray some carb cleaner where you suspect a leak and engine idle will change.

I suspect your problem is with the IAC. Try changing if you can't find a vacuum leak. Cheaper to check for leak first.

Oct 24, 2010 | 1995 Ford Mustang

1 Answer

Engine coad po442 how do i fix it

PO442 is the data trouble code for (evaporative emission control system leak detected "small leak") it means that the OBD-II system has detected a small vacuum leak in the evaporative control system.

You will need to find the vacuum leak in the evaporative control system, check for cracked or broken vacuum lines and hoses, especially the vacuum hoses and lines around the evaporative (Evap) canister and the (Evap) solenoid. Also check the gas cap seal for damage.

Vacuum hoses and lines should be checked very well for any cracks or breaks, because they usually hide under the vacuum line or hose.

May 02, 2010 | 2001 Dodge Durango

2 Answers

AC comes on, but when I accelerate the force of the air decreases and vise versa

There is a vacuum problem under the hood,look where it goes into the firewall and follow it,there will be a check valve in the vacuum hose,and it could be broken,or the hose is melted into,or the vacuum hose has disconnected.

Apr 09, 2010 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

Vacuum Leak, the car jurks sometimes while riding.

When the problem is a vacuum leak you also have troubles at idle.
The vacuum can be tested using an hand tool gauge like this.
Vacuum/Fuel Pump Tester Kit
Once you find the leak, replace the leaking part.
Often it is easy to find the leak at a glance, as it is hissing or you notice the air out from the leak. Other techniques are pumping smoke inside vacuum or spreading soapy water on vacuum lines.
check also the EGR valve.
If you need the vacuum system diagram purchase a repair manual like this one : 2000 Cadillac SeVille STS Repair Manual on CDROM .
Here also a free tutorial on vacuum problems.

Jul 14, 2009 | 2000 Cadillac Seville

1 Answer


you have a vacuum leak. Check the vacuum reservoir for a leak.

You can spray short bursts of starting fluid on the vacuum lines to find a leak. When engine revs, that's the leak. Be careful.

Vacuum Reservoir Tank and Bracket Removal
  1. NOTE: The A/C vacuum reservoir tank and bracket (19A566) is located either on or beneath the RH front fender splash shield (16102) .
    If the A/C vacuum reservoir tank and bracket is visible from above in the engine compartment, perform Steps 2 through 4. If the A/C vacuum reservoir tank and bracket is not visible in the engine compartment, perform Steps 5 through 8.
  1. Remove the screws and the A/C vacuum reservoir tank and bracket. 1b32ebf.gif

Jun 14, 2009 | 1988 Ford Ranger

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

Related Topics:

100 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

81400 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22359 Answers

gerry bissi

Level 3 Expert

4376 Answers

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

Answer questions

Manuals & User Guides