99-07 Superduty vacuum leak diagnosis

Рет қаралды 45,814

Күн бұрын

We show a simple diagnosis of the vacuum system on 99-07 F250-F550 Superdutys.
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Automedic Garage does not own nor claim the rights to any songs in this or other videos. This video is intended for informational and entertainment purposes. Always follow manufacturer and professional practices/advice when performing maintenance and modifications to any vehicle. Automedic Garage is not responsible for any damages or injuries incurred from attempting work portrayed in this video.
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Пікірлер: 110

@maxamy89 Ай бұрын

best video on KZfaq on this topic.... thank you

@freemanenmeier8051 Ай бұрын

Thank you, I watched your video, and was able to confirm and identify my vacuum pump was bad and also track that my heater vacuum hose was bad after identifying the main ports were good, you saved me a lot of money. I like this style of videos.

@AutomedicGarage Ай бұрын

Thanks bud

@anthonygallegos5826 24 күн бұрын

Wow, this is /was a really great video. Should a lot of info in a short time. Including the routing of the lines. I will be working on mine soon.

@jondrew7473 2 жыл бұрын

Dang brother. Thanks for the video. I have a '00 7.3L 350 that blows cold air out of the defrost only. Thanks for going over all of the usual suspects.

@marshallartz3194 2 жыл бұрын

Very helpful video troubleshooting a defrost-only situation on a buddy's 2000 F350 diesel. Turned turned out both hoses that were integral to vacuum motor had splits. Replaced hoses & system now works perfectly!

@devinpauley6520 Жыл бұрын

Excellent video, found my leak on my 07 F360 in about 5 minutes after watching

@jong6741 4 ай бұрын

Gotta love them F360's😊

@johnhinds4255 2 жыл бұрын

Thanks for the information. Just what I needed to know

@lloydthegreat7851 Жыл бұрын

Best video I've seen on this subject. Thanks guys.

@rogelioaguilar5964 2 жыл бұрын

it took me more time to get the pump than to install it., great information. thank you!!!!

@user-dz2gs8li2i Жыл бұрын

thanks Man, fixed the 7.3 excursion vacuum leak in 5 minutes.

@AutomedicGarage Жыл бұрын

Good deal. Glad it helped

@jameswilkie2392 2 жыл бұрын

Excellent!

@randycordes464 Жыл бұрын

Great job

@chopsooy 6 ай бұрын

Thank you much, well done very informative!

@anthonyparchman2348 2 ай бұрын

Awesome video, I have the same issue with my 05 6.0 right now. Gonna try this diag today. Thx man

@dad3874 6 ай бұрын

Very helpful thank you

@donhardy7467 11 ай бұрын

Good video!

@charleskelley9430 2 ай бұрын

Thanks...very informative

@thelarochellefarm595 8 ай бұрын

Great video

@ronymorales3527 Жыл бұрын

Thanks

@alzaidi7739 Жыл бұрын

I have a similar problem on a 2WD ( no 4WD vacuum solenoid ). Defrost only. Leak was caused by a disconnected vacuum connector under the glovebox! Winter boots maybe? It just hangs in the open. Black & white hoses. Had to replace the burned out vacuum pump too.

@AutomedicGarage Жыл бұрын

Those come unplugged all the time from peoples feet once the plastic holder for them breaks.

@jeffreymalek1292 Жыл бұрын

good video learned a lot, did my volt test at the wire no volts either wire so I know it gotta be a short fuse is good, any ideas where to start, thanks

@AutomedicGarage Жыл бұрын

Key was in run position correct?

@chadlambert3186 2 жыл бұрын

Might wanna clean battery post. Thanks for sharing

@daddybear7062 2 жыл бұрын

Thanks for this 2004 F250 gas, a/c works great. Make a hard right turn and then it blows hot for the rest of the drive. Any suggestions

@AutomedicGarage 2 жыл бұрын

Blend door must be loose or vacuum pod isn’t holding it secure

@ryanmcdonald5351 Жыл бұрын

Solid video. Two queations: What fuse serves the vacuum pump? What size of tubing?

@AutomedicGarage Жыл бұрын

I would have to look at the fuse panel brake down, never had one not getting power to the connector. Not sure on hose size for that small of hose, I could pick it out by eye but if you need to patch a broken or cracked line just cut a small piece off and go to your local parts or hardware store and match it up.

@buddyluv5 2 жыл бұрын

I plugged the hose on the diverter valve and still same results?

@norris.7670 10 ай бұрын

👍

@nickbarrfishing 4 ай бұрын

What about 4WD auto hubs sticking? And a slow intermittent vacuum leak while driving normal in 2WD causing pump to kick on every 4-6 mins??

@keithreinemann139 2 жыл бұрын

Does the 1991 F350 super duty gas engine have the same pump? Or does it use the engine vacuum?

@AutomedicGarage 2 жыл бұрын

If it’s a gas burner it relies on manifold vacuum from the engine.

@donche_9514 2 жыл бұрын

What was the size of that clear hose. Would be handy to keep some of that around. Thanks!! Great video.

@AutomedicGarage 2 жыл бұрын

Can’t tell you the size off hand but I keep a roll in the shop for vacuum line repair

@LemonySnicket-EUC Жыл бұрын

Use vacuum rated hose if you can.

@johnhinds4255 2 жыл бұрын

That's that helped. The 4x switch was leaking. Bypassed that . Everything thing works inside. But even when switch on control is off pump still runs

@roycevaughn6472 9 күн бұрын

I have same issues but noticed my vacuum lines to my hubs are gone

@matthewturchan6286 19 сағат бұрын

Not getting power for the 4 wheel drive.... I've checked vacuum didn't hear or see anything unusual..... so what control the power ? To turn on?. 2000 7.3 super duty, power stroke, 8 foot bed

@AutomedicGarage 18 сағат бұрын

@@matthewturchan6286 when you say your not getting power to 4 wheel drive are you referring to your mode switch in the dash? Is your 4x4 auto or manual hubs? Or are you referring to power to the vacuum pump? Is the 4x4 vacuum actuator on the passenger fender present plugged in and functioning? Are you vacuum lines from the actuator to the spindles present and in good working order? Do you have 12v at the vacuum pump? Is the fuse good for the vacuum pump?

@pk831 Жыл бұрын

I have a 2001 f250 2wd with the 7.3. my vacuum pump doesn’t turn off unless I put a finger on the white connector. I see that nothing needs to be connected there, lines under glovebox all fine. What else could I check?

@AutomedicGarage Жыл бұрын

You have a leak somewhere. Could be at a vacuum pod or the vacuum pod itself or if you have a heater control valve at it. Could have a cracked vacuum container. Go through everything I checked in the video.

@LemonySnicket-EUC Жыл бұрын

Did you figure it out ?

@pk831 Жыл бұрын

@@LemonySnicket-EUC not yet, will be a while until I get to it

@MRJBLOW707 5 ай бұрын

I have vent and defrost and floor with no pump coming on and no hubs move?

@AutomedicGarage 5 ай бұрын

Maybe the 4x4 actuator valve then or you have a vacuum leak on 4x4 lines

@petervang9523 Жыл бұрын

Would a 97 7.3l belt driven vacuum pump use this same diagnosis? My pump is pulsing nonstop is that normal?

@AutomedicGarage Жыл бұрын

Kinda, on the obs trucks I first hook a vacuum gauge straight to the line on the back of the pump and see what my vacuum is which should produce around 25 of vacuum and not drop below 15. After that I hook up the the vacuum manifold and see what it drops to when depressing the brake pedal and using the hvac controls and see what it does under a load. Hope that helps some.

@petervang9523 Жыл бұрын

@@AutomedicGarage my problem is a brake pedal not returning. At the vacuum pump I got 23 1/2 with a gauge. At the end of the hose to the booster 22 1/2 . At the hose going to the hvac is 23. When disconnecting the hose to brake booster the brake pedal comes back up. Hard to depress but comes up. I have installed a new brake booster and new MC. What do you think is the problem?

@petervang9523 Жыл бұрын

@@AutomedicGarage using the hvac hose because it’s the longest that I can put up to the windshield using the vac gauge . It reads 23 and when pressing on brake it drops to 20 then climbs back up to 23. Brake pedal still not returning.

@AutomedicGarage Жыл бұрын

@@petervang9523 I’ve had a couple OBS trucks do the same and had rear brake shoes completely gone or adjusted way to loose. Just a thought.

@DuckbumSD 11 ай бұрын

Could that be a reason why I don’t get 4WD to the front wheels unless I lock my hubs up ?

@AutomedicGarage 11 ай бұрын

More than likely, could also be a leak from the old vacuum hoses going to your locking hubs.

@DuckbumSD 11 ай бұрын

@@AutomedicGarage I will check my vac hoses to the hubs tomorrow thanks

@TheHighrider3 5 ай бұрын

When is the vacuum pump supposed to be running? Anytime the key is in the on position?

@AutomedicGarage 5 ай бұрын

Anytime it sees less than 15 of vacuum with key on

@TheHighrider3 5 ай бұрын

What is that oval thing between the pump and the battery? It says ford on it.

@AutomedicGarage 5 ай бұрын

@@TheHighrider3 vacuum canister, it stores enough vacuum to do operation so the pump doesn’t kick on constantly

@TheHighrider3 5 ай бұрын

Thanks

@steventhorkelsen6478 10 ай бұрын

2007 superduty 6.0 When on max ac it blows from vents and defrost ??? Any idea on what could be causing that

@AutomedicGarage 10 ай бұрын

May be making a small amount of vacuum which is keeping it in the next slot back from full default mode which is defrost. Check for leaks. Is you pump running constantly?

@steventhorkelsen6478 10 ай бұрын

@@AutomedicGarage I’ll be checking that tomorrow. I’ve seen some videos on how to check for leaks. I was thinking a weak vacuum pump? Who knows it’s the original one from 2007

@AutomedicGarage 10 ай бұрын

@@steventhorkelsen6478 hook a vacuum gauge to the main line into the vacuum pump see what it pulls down to and if it holds.

@playtimet.v7342 11 ай бұрын

My pump turns off and still it blows front the defrost. Could it be the actuator?

@AutomedicGarage 11 ай бұрын

Very well could be check the lines going through and onto the other side of the firewall.

@playtimet.v7342 11 ай бұрын

@AutomedicGarage I just went ahead and hooked the pump straight to the line coming from the firewall and it blows cold ac. So I'm thinking it's the hub or the lines along the way. Or vacum box

@buddyluv5 2 жыл бұрын

Should there air coming out the niple with no hose on it?

@AutomedicGarage 2 жыл бұрын

The white nipple, yes that’s the exhaust of the vacuum pump

@buddyluv5 2 жыл бұрын

Ok my pump just runs so I have a leak somewhere

@buddyluv5 2 жыл бұрын

Thanks for ur help . Sorry to keep asking questions

@AutomedicGarage 2 жыл бұрын

@@buddyluv5 your good, just start isolating items on the vacuum system like I did in the video and narrow it down.

@buzzybee8358 Жыл бұрын

Do you know if the wipers need vacuum to operate?

@AutomedicGarage Жыл бұрын

Wipers are electric only. Vacuum is for HVAC controls and locking hubs only.

@buzzybee8358 Жыл бұрын

@@AutomedicGarage thanks for your response. Currently trying to figure out my vacuum problems. Sorry one more question. So if I have the manual locking hubs does it still need vacuum?

@AutomedicGarage Жыл бұрын

@@buzzybee8358 do you hubs just have “lock and open” on them or “manual and auto” on them?

@buzzybee8358 Жыл бұрын

It is just lock and open

@AutomedicGarage Жыл бұрын

@@buzzybee8358 so you have true manual locking hubs so you don’t use vacuum for your hubs at all. I like those better anyways and usually convert the auto hubs to manual warn or Mile marker hubs.

@buddyluv5 2 жыл бұрын

I put a pressure gage and it was 15 psi then the pump turned off? So

@marshallartz3194 2 жыл бұрын

Mine did too: means the pump is working properly.

@kmann1430 2 жыл бұрын

Vacuum in measured in inches of mercury. Good vid though thanks.

@AutomedicGarage 2 жыл бұрын

Yes it is, I misspoke on accident. Thank you for the correction.

@kmann1430 2 жыл бұрын

@@AutomedicGarage i like your ford content and subscribed 👌

@AutomedicGarage 2 жыл бұрын

@@kmann1430 Thanks bud, we got a lot more coming and the new shop is going to really change things.

@johnnycortez46 3 күн бұрын

The canister easy to install?

@AutomedicGarage 3 күн бұрын

@@johnnycortez46 yea, unplug the vacuum line and remove 3 11mm nuts on the bottom side of inner fender well.

@johnnycortez46 3 күн бұрын

@@AutomedicGarage Cool deal. Thank you

@johnnycortez46 Күн бұрын

Do you happen to know if a 2006 has a check valve on the vacuum system?

@AutomedicGarage 18 сағат бұрын

@@johnnycortez46 no check valve

@tylerwhite5015 Жыл бұрын

Found one line disconnected and pump achieves vacuum but still nothing any ideas?

@AutomedicGarage Жыл бұрын

What isn’t working? Locking hubs? A/C controls?

@tylerwhite5015 Жыл бұрын

@@AutomedicGarage no 4wd ESOF or A/C controls

@AutomedicGarage Жыл бұрын

@@tylerwhite5015 you have no vacuum to controls then.

@tylerwhite5015 Жыл бұрын

The thing is the vacuum pump shuts off after about 60-90 seconds like the pump is achieving vacuum but still no HVAC controls. Could the pump possibly be reading a false vacuum?

@AutomedicGarage Жыл бұрын

@@tylerwhite5015 how much vacuume are you achieving with a gauge?