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Old 09-07-2005, 03:42 PM
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Does this sound like bad gas?

Ok, I filled up my car and and drove maybe 2 or 3 miles and parked the car. Then it wouldn't start. I let it sit awhile and it started but was missing really bad and blowing black smoke out the tail pipe then it died after it warmed back up. I had to let it sit and the next day, I replaced the fuel filter. It drove fine for 4 or 5 miles and then it wouldn't run again. I tried 2 bottles of the premiem heet water remover but it didn't help abit. I ran the codes on the computer and came up with a few codes. I checked the cat and oxygen sensors and replaced the engine coolant sensor. The only thing I haven't checked on the code retrieval is "Vacuum Sys. Purge or VMV". Im not sure what that is. Can anyone tell me what that is?

So if I got bad gas, wouldn't it miss and blow black smoke all the time instead of sometimes. Sometimes when its cold it runs fine for a few minutes and sometimes it misses as soon as I start it. However it ALWAYS misses after the engine runs for a few minutes. Its so bad, it wont even run or I can put the pedal flat on the floor and it goes maybe 2 or 3 MPH and blows massive black smoke out of the tailpipe.

Any help is greatly appreciated.

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Old 09-07-2005, 03:46 PM
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Sounds like more than gas to me.........Like you said, it is intermitant. Bad gas would be bad all the time.

What car/engine are we talking about here?
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Old 09-07-2005, 03:50 PM
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the Canister Purge Assembly. This assembly connects the intake manifold to the charcoal canister and the assembly is made up of hoses, a valve and a sensor.
Ok, found out about the purge valve sensor. Im gonna check that out.

The car is a 96 T-bird, I know it's not a hotrod, but it wont run at all and I been stuck driving my 13 MPG truck to work, I hate it, I live to far from work.
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Old 09-10-2005, 04:33 PM
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Quote:
Originally Posted by firechicken383
Ok, found out about the purge valve sensor. Im gonna check that out.

The car is a 96 T-bird, I know it's not a hotrod, but it wont run at all and I been stuck driving my 13 MPG truck to work, I hate it, I live to far from work.
fuel pressure regulator diaphram bad
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Old 09-10-2005, 07:13 PM
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fuel pressure regulator diaphram bad
I thought that too so I pulled the vacuum hose to the regulator cause I thought it was pulling gas into the engine, but it wasn't that. I pulled the tank and added fresh gas and still no go. Oh well, I'll get it (I hope). Probably some stupid little sensor.

Thanks for the replies.
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Old 09-11-2005, 09:09 AM
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Quote:
Originally Posted by firechicken383
I thought that too so I pulled the vacuum hose to the regulator cause I thought it was pulling gas into the engine, but it wasn't that. I pulled the tank and added fresh gas and still no go. Oh well, I'll get it (I hope). Probably some stupid little sensor.

Thanks for the replies.
***********

Probably,

What's both fuel pressures..? If the diaphram is bad = Is it stuck on maximum pressure?????? A bad diaphram will NOT make it pull fuel down the hose. The diaphram only controls the opening of an orifice, sort of like a needle and seat in a carburetor.
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Old 09-11-2005, 08:38 PM
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5 psi or so more with the regulator unplugged. Ford tells me that my pressure is within spec. Thanks for the replies.
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Old 09-12-2005, 05:13 PM
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Sounds to me like your computer thinks it is cold outside. Check your coolant temp sensor again and check all wires for corrosion. Your engine is choking itself, it seems. You might also try resetting your computer by unplugging battery for a few minutes. I think that works on Fords, I'm not sure.
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Old 09-12-2005, 05:17 PM
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I just about split my gut when I saw the title of this thread!

tom
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Old 09-12-2005, 07:01 PM
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Originally Posted by machine shop tom
I just about split my gut when I saw the title of this thread!

tom
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