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Vulcan pressure switch problem. Still exists even though I've changed it for a brand new one

Hi. Have just replaced the pressure switch on our Vulcan 9151 and still have the same problem of not firing up. Connections are all good tight and not blocked. If I remove a hose from the pressure switch and then replace it back on the PS it fires up. But I have to keep doing this every time I want the heating on ??

Posted by Fred lattimer on


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  • 1 Answer

SOURCE: Rear cylinder not firing

95 Evo, new plugs, new wires, started backfireing like a machine gun, front cyl. no spark at plug sometimes - would this be the coil, have not ohmed the coil yet . Thanks

Posted on May 13, 2009



  • 15 Answers

SOURCE: Pentair Minimax NT 400 heater. fan keeps coming

Sounds like the controller is the problem. This is the circuit board that has the display and controls on it. You can swing that panel open and try tapping on the white plastic cover the controller is under that. This might get the fan relay to release but you will have to replace the controller it will stick again

Posted on Jun 23, 2009



  • 6 Answers

SOURCE: lack of power, hesitation, #1 miss firing

you may need to perform a leak down test to the cyliner and maybe you may have carbon on that valve. make sure the new spark plug wire has the correct continiuty

Posted on Jul 27, 2009

Mark Babineau

  • 1129 Answers

SOURCE: Honda s2000, 2001 loose of

Sounds like an ignition component failure check for proper resistance through primary and secondary ignition coil windings, refer to service repair manual for exact specs, also the ignitor magnetic pick up may be not up to snuff, the only other ignition component to replace or check is the ignition module and/or plug wires themselves, sometimes when extreme demand is put on the ignition system the plug wires must be high quality and completely isolated from one another. Spark plug wires when routing cannot come in contact with one another in the slightest proximity.

Posted on Aug 23, 2009


  • 1 Answer

SOURCE: 99 vw passat sw 1.8t #3 cyl not firing.

ihad the same problem.. its not the coils or anything like that.. and any reg mechanic wont know the prob unless they under vw.. u need to replace ur power output stage.. thats what cylinder 3 misfire is.. after i fixed it my car is good as new. i

Posted on Oct 14, 2009

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