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Old 02-26-2012, 07:44 PM   #1
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Smoking problem with the 5.0

This has only happened a few times, but every time I go for a cruse or so I like to open it up on a long stretch. This has only happened when I have to pedal to the floor and for around 80mph and up. White smoke comes out for just a little bit and I can see it in the rear view mirror.

I'm thinking it must be some piston rings or maybe a gasket. Anyone know about a problem like this? I'm not a person that gives my car hell. I know it's about time to do a build.
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Old 02-26-2012, 07:55 PM   #2
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you could do a compression test on your cylinders.
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Old 02-26-2012, 10:35 PM   #3
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Originally Posted by dreamstang
you could do a compression test on your cylinders.
I don't have a gauge with me at the time. I prolly should do one. Or see if someone had a electronic tester I could use.
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Old 02-27-2012, 12:29 AM   #4
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Re: Smoking problem with the 5.0

Valve guide seals most likely.
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Old 02-27-2012, 12:39 AM   #5
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Quote:
Originally Posted by Trojan Horse
Valve guide seals most likely.
Just the man I was waiting for! haha. That was the first thing that came to mind, I'll just have to do some problem solving.
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Old 02-27-2012, 12:46 AM   #6
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Re: Smoking problem with the 5.0

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Just the man I was waiting for! haha. That was the first thing that came to mind, I'll just have to do some problem solving.
They tend to get old, harden and crumble away in time.
Right after you do that sometime, pull over and see if you smell oil or antifreeze at the tailpipes.
Oil smell and I'd bet its the valve guide seals.
Antifreeze and it's likely a small coolant leak into the intake.
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Old 02-27-2012, 01:07 AM   #7
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Quote:
Originally Posted by Trojan Horse

They tend to get old, harden and crumble away in time.
Right after you do that sometime, pull over and see if you smell oil or antifreeze at the tailpipes.
Oil smell and I'd bet its the valve guide seals.
Antifreeze and it's likely a small coolant leak into the intake.
See I knew I smelt some coolant before. I'll take a picture of it tomorrow were I seem some coolant leaking.
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Old 02-28-2012, 01:49 PM   #8
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Quote:
Originally Posted by Trojan Horse

They tend to get old, harden and crumble away in time.
Right after you do that sometime, pull over and see if you smell oil or antifreeze at the tailpipes.
Oil smell and I'd bet its the valve guide seals.
Antifreeze and it's likely a small coolant leak into the intake.
Here are those pictures I told you about. The anti freeze is coming from the radiator hose in the picture. My question is. Is this what could make it smoke at high rpms around 80 and pedal to the floor



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Old 02-28-2012, 02:15 PM   #9
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Re: Smoking problem with the 5.0

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Here are those pictures I told you about. The anti freeze is coming from the radiator hose in the picture. My question is. Is this what could make it smoke at high rpms around 80 and pedal to the floor
Smoke from where?


Tailpipes, not likely, unless it blows back and is sucked into the intake through a leak or in some other manner.
Under the hood, possible as your engine heats up and the pump spins faster the pressure will increase some so it may leak more.
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Old 02-28-2012, 02:19 PM   #10
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Quote:
Originally Posted by Trojan Horse

Smoke from where?

Tailpipes, not likely, unless it blows back and is sucked into the intake through a leak or in some other manner.
Under the hood, possible as your engine heats up and the pump spins faster the pressure will increase some so it may leak more.
When I'm like on the highway or around 80 and put the pedal to the floor white smoke will blow out like a puff of smoke doesn't happen often. Think it's coolant? Or a old seal?
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Old 02-28-2012, 03:24 PM   #11
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Re: Smoking problem with the 5.0

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When I'm like on the highway or around 80 and put the pedal to the floor white smoke will blow out like a puff of smoke doesn't happen often. Think it's coolant? Or a old seal?
Out of the exhaust, it's likely the valve seals.
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Old 02-28-2012, 03:37 PM   #12
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Originally Posted by Trojan Horse
Out of the exhaust, it's likely the valve seals.
Well alrighty then. Thank you for the help my friend.
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Old 02-29-2012, 07:20 AM   #13
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Mine did that a couple of times. A while. Back. But the smoke was just a little darker then white. But I changed my oil and put a new pcv vavle on it. And also my vaccum line was broke goinh to the pcv valve. And it only done it when I got on it real hard. Just throwing u a ideal. I would check all the components for the pcv.
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Old 02-29-2012, 11:58 AM   #14
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Originally Posted by Robbie94gt
Mine did that a couple of times. A while. Back. But the smoke was just a little darker then white. But I changed my oil and put a new pcv vavle on it. And also my vaccum line was broke goinh to the pcv valve. And it only done it when I got on it real hard. Just throwing u a ideal. I would check all the components for the pcv.
I'll have to check it out when I get back to my home town and get it in the garage.
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Old 03-02-2012, 10:52 AM   #15
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Re: Smoking problem with the 5.0

Rule of thumb is:
White Smoke is water/coolant.
Blue smoke is oil.
Black smoke is fuel mixture too rich.

Steel shim head gaskets are notorious for rusting out after a while.
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Old 03-02-2012, 07:01 PM   #16
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Quote:
Originally Posted by 9Sec93LX
Rule of thumb is:
White Smoke is water/coolant.
Blue smoke is oil.
Black smoke is fuel mixture too rich.

Steel shim head gaskets are notorious for rusting out after a while.
Im sure it's a coolant seal.
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Old 03-06-2012, 04:53 PM   #17
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Quote:
Originally Posted by Robbie94gt
Mine did that a couple of times. A while. Back. But the smoke was just a little darker then white. But I changed my oil and put a new pcv vavle on it. And also my vaccum line was broke goinh to the pcv valve. And it only done it when I got on it real hard. Just throwing u a ideal. I would check all the components for the pcv.
You had to take that intake off when you change the PVC didn't you?
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Old 03-06-2012, 07:41 PM   #18
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It makes it easier when the upper is off so u can check all the vacuum lines with it. But it can be done with the upper still on thr car. It's just a pretty tight fit to get your hand down there. It's right in thr middle of lower intake manifold in the bsck next to the firewall in case if u don't know where it's at.
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Old 03-06-2012, 07:55 PM   #19
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Originally Posted by Robbie94gt
It makes it easier when the upper is off so u can check all the vacuum lines with it. But it can be done with the upper still on thr car. It's just a pretty tight fit to get your hand down there. It's right in thr middle of lower intake manifold in the bsck next to the firewall in case if u don't know where it's at.
Yeah i knew were it was I'm a big guy (6'5 270) so its goin to be a B*&$h to get my hand in there.
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Old 03-07-2012, 06:32 AM   #20
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Well u prolly should jst go ahead and take the upper off then. I'm 5,10 165 pounds and I still had a time getting to it with the upper on.
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Old 03-07-2012, 11:13 AM   #21
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Originally Posted by Robbie94gt
Well u prolly should jst go ahead and take the upper off then. I'm 5,10 165 pounds and I still had a time getting to it with the upper on.
That's great. Prolly replace some other gaskets while I'm at it anyways.
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