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mazda miata help gas in exhaust


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doanuts
User

Nov 4, 2011, 5:15 PM

Post #1 of 10 (2813 views)
mazda miata help gas in exhaust Sign In

HELP FAST I HAVE A 1990 MAZDA MIATA GAS AND WHITE SMOKE STARTED COMING OUT MY EXHAUST. SPARK PLUGS 2 AND 4 ARE DRENCHED IN GAS THER NEW PLUGS AND THE COIL PACK IS GOOD THER IS STILL SPARK ON ALL PLUGS. THINKING ITS FUEL PRESSURE REGULATOR?????? HELP PLEASE I NEED THIS VEHICLE FER WORK I NEED ANY HELP I CAN GET And can not take it to a shop
Shane doan


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Nov 4, 2011, 5:54 PM

Post #2 of 10 (2792 views)
Re: mazda miata help gas in exhaust Sign In

White smoke generally means burning coolant, usually a blow head gasket. I would do a compression test before anything else.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
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Nov 4, 2011, 7:29 PM

Post #3 of 10 (2776 views)
Re: mazda miata help gas in exhaust Sign In

Did you pull the vacuum hose of the regulator and check for raw fuel?

What happened with the check engine light? Did you solve that problem?

http://autoforums.carjunky.com/...search_engine#103532


Believe this or not if you get enough fuel in the cylinder(s) that it doesn't burn at all cause the spark plug is gas fouled, it will produce white gas vapor out the exhaust.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Nov 4, 2011, 7:34 PM)


doanuts
User

Nov 4, 2011, 7:34 PM

Post #4 of 10 (2769 views)
Re: mazda miata help gas in exhaust Sign In

No check engine light. What one is the vacume hose thers one going from gas tank to regulator and one from regulator to intake manifold
Shane doan


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Nov 4, 2011, 7:37 PM

Post #5 of 10 (2767 views)
Re: mazda miata help gas in exhaust Sign In

The rubber vacuum hose that come from the intake manifold to the top of the regulator. Take the vacuum hose off the top of the regulator and turn the ignition on. If you see gas in the hose or gas squirting out the regulator, time for a regulator.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


doanuts
User

Nov 4, 2011, 8:10 PM

Post #6 of 10 (2761 views)
Re: mazda miata help gas in exhaust Sign In

Thank you soo much i will try this in the morning sence it is too dark now and very cold. Is ther any other thing u think it might be if not this regulator?
Shane doan


Discretesignals
Ultimate Carjunky / Moderator
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Nov 4, 2011, 8:27 PM

Post #7 of 10 (2757 views)
Re: mazda miata help gas in exhaust Sign In

Leaking injector.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Tom Greenleaf
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Nov 5, 2011, 5:39 AM

Post #8 of 10 (2731 views)
Re: mazda miata help gas in exhaust Sign In

Shane: Check the oil now and just crank for now for tests. Oil could easily be too full now and if you drive it with gas in the oil it won't lubricate diddle or cylinder wash hurt anything lubricated by that much gas. Would hate to hear of perhaps a small problem be the disaster that takes the engine out,

T



doanuts
User

Nov 5, 2011, 5:51 AM

Post #9 of 10 (2727 views)
Re: mazda miata help gas in exhaust Sign In

M sorry u kinda lost me on the diddle and wash was the sposta say wont? I apreciate any help
Shane doan


Tom Greenleaf
Ultimate Carjunky / Moderator
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Nov 5, 2011, 6:12 AM

Post #10 of 10 (2724 views)
Re: mazda miata help gas in exhaust Sign In

Diddle = Not much

Wash in this usage = washes off lubricating oil. No lubrication of cylinder walls will cause rapid wear.

Check that regulator. As said just crank this for test if oil is found too full or smells of gas if this engine is to be saved. If you think there's a chance now change it now even for testing and change again if you find the source problem and fix it before driving it,

T







 
 
 






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