Sputtering on start
Thread Starter
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Joined: May 2005
Posts: 635
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From: Cambria CA
Sputtering on start
So I bought an intake manifold from a forum member because mine needed replacing(Thanks Rick!) but now I think one of the lifters may be sticking. The guy who worked on my car told me that the car looks like it had sat for a while..and he was right I bought it with 23k 3 years ago..
anyways he showed me all the sludge and I can't help but think the lifter is the culperate. When I start it up it starts sputtering and after it warms up its fine with the exception of a little studdering on WOT..
let me know if anyone has any ideas, I can't spend any more money on this car, just trying to get rid of it...
If I could keep it I would, I will forever be a vette enthusiast! TiA
-Shawn
anyways he showed me all the sludge and I can't help but think the lifter is the culperate. When I start it up it starts sputtering and after it warms up its fine with the exception of a little studdering on WOT..
let me know if anyone has any ideas, I can't spend any more money on this car, just trying to get rid of it...
If I could keep it I would, I will forever be a vette enthusiast! TiA
-Shawn
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Joined: Jun 2008
Posts: 531
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From: Calgary Alberta
There is a can of spray that you can get from you GM dealer. It's a cleaner that actually works and has proven to get rid of a hesitation & sputter on a similar car. I can't remember the exact name of it, but it was a GM brand can. The instructions listed on the can are almost exactly what I have written here: (I'm sure they don't have too many different options here.)
You have to remove the MAF, invert the can and spray it directly into the intake with the engine running a bit above idle. You'll have to rev it up by hand when you spray in, as it will try to choke. At somepoint while you're doing this, you'll get a puff of white smoke out of the tail pipes, and that'll be most of the crud. Continue spraying until the can is empty. Then go for a drive and see if it's still there....
You have to remove the MAF, invert the can and spray it directly into the intake with the engine running a bit above idle. You'll have to rev it up by hand when you spray in, as it will try to choke. At somepoint while you're doing this, you'll get a puff of white smoke out of the tail pipes, and that'll be most of the crud. Continue spraying until the can is empty. Then go for a drive and see if it's still there....
Thread Starter
Pro
Joined: May 2005
Posts: 635
Likes: 0
From: Cambria CA
There is a can of spray that you can get from you GM dealer. It's a cleaner that actually works and has proven to get rid of a hesitation & sputter on a similar car. I can't remember the exact name of it, but it was a GM brand can. The instructions listed on the can are almost exactly what I have written here: (I'm sure they don't have too many different options here.)
You have to remove the MAF, invert the can and spray it directly into the intake with the engine running a bit above idle. You'll have to rev it up by hand when you spray in, as it will try to choke. At somepoint while you're doing this, you'll get a puff of white smoke out of the tail pipes, and that'll be most of the crud. Continue spraying until the can is empty. Then go for a drive and see if it's still there....
You have to remove the MAF, invert the can and spray it directly into the intake with the engine running a bit above idle. You'll have to rev it up by hand when you spray in, as it will try to choke. At somepoint while you're doing this, you'll get a puff of white smoke out of the tail pipes, and that'll be most of the crud. Continue spraying until the can is empty. Then go for a drive and see if it's still there....
somewhere by the runners and plenum I would guess
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Joined: Jun 2008
Posts: 531
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From: Calgary Alberta
Shawn_65 - It is extremely easy!
The MAF is located in the hard plastic tube that connects the Air Intake Box to the flexible plastic tube taking air into the intake plenum.
To disconnect it there are two metal clasps, squeeze them in the middle and use a slotted screwdriver to pop them off.
Then use the same screwdriver to loosen the band clamp around the plastic tube where it meets the intake.
I suggest that you don't disconnect the electrical connection to the MAF. (you don't need to - that should keep it from throwing a code)
with one hand twist the accel to open the butterflies slightly, and as you begin to spray, give it more - you shouldn't have to go more than 50% and there's no need to. When the white puff comes out and the can is empty you should be good to go.
I'd try this first, it's only a $6 solution and it won't hurt your car if it doesn't fix the sputtering. But chances are that if you take it into a your dealer or an AC Delco shop, this is what they'll do first and you'll pay full price for the supplies, plus their time.
Good Luck !
The MAF is located in the hard plastic tube that connects the Air Intake Box to the flexible plastic tube taking air into the intake plenum.
To disconnect it there are two metal clasps, squeeze them in the middle and use a slotted screwdriver to pop them off.
Then use the same screwdriver to loosen the band clamp around the plastic tube where it meets the intake.
I suggest that you don't disconnect the electrical connection to the MAF. (you don't need to - that should keep it from throwing a code)
with one hand twist the accel to open the butterflies slightly, and as you begin to spray, give it more - you shouldn't have to go more than 50% and there's no need to. When the white puff comes out and the can is empty you should be good to go.
I'd try this first, it's only a $6 solution and it won't hurt your car if it doesn't fix the sputtering. But chances are that if you take it into a your dealer or an AC Delco shop, this is what they'll do first and you'll pay full price for the supplies, plus their time.
Good Luck !
Safety Car
Joined: Oct 2007
Posts: 3,816
Likes: 0
From: :45 minutes from everywhere / E-I-E-I-O
Shawn_65 - It is extremely easy!
The MAF is located in the hard plastic tube that connects the Air Intake Box to the flexible plastic tube taking air into the intake plenum.
To disconnect it there are two metal clasps, squeeze them in the middle and use a slotted screwdriver to pop them off.
Then use the same screwdriver to loosen the band clamp around the plastic tube where it meets the intake.
I suggest that you don't disconnect the electrical connection to the MAF. (you don't need to - that should keep it from throwing a code)
with one hand twist the accel to open the butterflies slightly, and as you begin to spray, give it more - you shouldn't have to go more than 50% and there's no need to. When the white puff comes out and the can is empty you should be good to go.
I'd try this first, it's only a $6 solution and it won't hurt your car if it doesn't fix the sputtering. But chances are that if you take it into a your dealer or an AC Delco shop, this is what they'll do first and you'll pay full price for the supplies, plus their time.
Good Luck !
The MAF is located in the hard plastic tube that connects the Air Intake Box to the flexible plastic tube taking air into the intake plenum.
To disconnect it there are two metal clasps, squeeze them in the middle and use a slotted screwdriver to pop them off.
Then use the same screwdriver to loosen the band clamp around the plastic tube where it meets the intake.
I suggest that you don't disconnect the electrical connection to the MAF. (you don't need to - that should keep it from throwing a code)
with one hand twist the accel to open the butterflies slightly, and as you begin to spray, give it more - you shouldn't have to go more than 50% and there's no need to. When the white puff comes out and the can is empty you should be good to go.
I'd try this first, it's only a $6 solution and it won't hurt your car if it doesn't fix the sputtering. But chances are that if you take it into a your dealer or an AC Delco shop, this is what they'll do first and you'll pay full price for the supplies, plus their time.
Good Luck !
But the MAF is a fragile piece with that filament in there. Might be a better idea to pull the whole hose, with those rubber 'bumper' hose pieces to cushion it as you pull it.
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Joined: Jun 2008
Posts: 531
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From: Calgary Alberta
I agree - If the MAF "stuck" to the air cleaner box opening then you should be careful pulling it appart - If it's been taken apart before it should come out very smoothly once the two metal clasps are disconnected. Unless it has been previously re-assembled incorrectly, there should not be any glue or sealant keeping the MAF and the Air Box together.
