Question about Ford E-350

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1999 Ford e350. The vacuum reservoir mount rusted and the unit dragged, then fell off. I reconnected the air lines best I could and remounted with wire. If the unit fails or is already failed, will it cause the car to stop working? Ie, can I drive it with a busted vac reservoir?

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  • tony L
    tony L Feb 15, 2014

    Is there a way I can tell if it's malfunctioning? it only fell off and I'm not sure if it broke or if I put it back together correctly.



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You can but it will run bad. Might get check engine light to come on and it wont pass emissions.

Posted on Feb 15, 2014

  • Brad Brown Feb 15, 2014

    The cannister could be pressure orvacuum tested with special diagnostic tools. The easiest way to get a new one would be at a salvage yard. The diagrams for that system are free at autozone dot com and you make a free account and then logon to the account and put in the year, make and model and look at the free repair guides.



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SOURCE: My 1992 Cutlass Supreme SL Olds failed emissions.

High NOX readings indicate a somewhat lean condition IE: hot exhaust. Possible causes are cracked and leaking vacuum lines or lazy oxygen sensors. If possible have a reputable garage with engine electronics scanner services check the sensor to see if its helping to create the lean condition

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SOURCE: I need a vacuum hose diagram for a 1986 E350 5.8L

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SOURCE: 2001 ford escort, rough idle, runs smooth while

Your IAC may be defective, first check the canister purge valve by removing the large hose off the charcoal canster and plugging the hose with a bolt or something you can fit into it, then try it also check PCV valve and see if it's bad. there are more things to check like fuel filter fuel pump and or fuel strainer if fuel tank but would need to have more information to help.

Posted on Aug 28, 2009

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This is caused by the IAC valve. Over time the valve becomes gummy and inoperative. Get it replaced and the problem is solved. IAC stands for idle air control, hence the stalling concern.

Posted on Oct 18, 2009

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SOURCE: 1991 Chevy C1500 intermittent problem. Failed smog.

1991 Blazer 5.7, 142,000 miles, new plugs, air filter, PCV valve, knock sensor. Runs great, right up to when i tried to smog it. It had about 1/4 tank of fuel and about a half of bottle of smog pass, (just wanted to make sure) All was smooth until they started the vehicle to let it warm up! Then after about ten minutes it overheated. I had broke a live wire, which killed the two electric fans charged with cooling the engine. So there i sat for about a hour and half. After a simple repair the engine is now with a temp of about 205 to 210. They conduct the test. 209 hydrocarbons at low idle and 509 at high. They said the 509 is borderline but ok, the low idle hydro carbons is way out (there words). So they suggest I burp the cooling system, see a mechanic and try again. Then I had a aftemarket K

Posted on Aug 10, 2010

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Need pitcure of vaccum lines on 1999 Ford Ranger v6 3.o air and heat blows only threw the defroster.


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