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Old 10-23-2016, 01:08 PM   #1
Mkharris
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Default New Saturn Owner Need Help

We just bought an 02 Saturn Vue 3.0L V6 engine. We were told it needed an idling sensor. Well, after doig research we cleaned the throttle body, MAF, and air filter. Because apparently there is no idling sensor on this model. After removing that big black plastic air flow thing (i dont know terms sorry) We noticed a crack on the metal right below it. I dont know what this part is called but i need to know if thos can be repaired easy with JB weld or something else. It is sucking in air majorly. Now the car drives fine, but it idles at 300 rpm. It doesnt cut off though. Please help.

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Old 10-23-2016, 01:19 PM   #2
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Default Re: New Saturn Owner Need Help

Here is a picture of the area im talking about.
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Old 10-23-2016, 01:34 PM   #3
billysvue
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Default Re: New Saturn Owner Need Help

WHere's the crack? Idon't see it.

W/o knowing more, I'd say you could try the JB, or similar quick setting high temp epoxy, but it would be a bandaid fix , only, and not likely to last without stop drilling the crack( where is it again?) or getting it welded up or replacing the intake mainfold entirely.
You could also do other maint- like changing the sparkplugs which are only accessed by removal of same.https://cse.google.com/cse?cx=partne...intake%20leaks

...
'05 ,2.2L, FWD,5-speed stick with transaxle death rattle is history,,,
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Old 10-23-2016, 03:30 PM   #4
Mkharris
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Default Re: New Saturn Owner Need Help

The crack wasnt shown in the picture i took. Its under that black casing. I circled the diagram of where the crack is. Its in red. You can hear the air getting sucked in when you turn it on.
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Old 10-23-2016, 03:48 PM   #5
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Default Re: New Saturn Owner Need Help

What i dont get is that the vehicle runs great. It just idles really rough. It acts like it wants to cut off but doesnt. I dont want to have to put $1000 into this vehicle. Im really hoping for a fix we can do ourselves. We have 3 young kids and it was bought to take them to and from school. Only to get taken advantage of by the seller. We should have known better. If someone could help us out, we would forever be greatful.

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Old 10-23-2016, 03:50 PM   #6
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Default Re: New Saturn Owner Need Help

If I continue to drive as is, will it ruin the engine?

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Old 10-23-2016, 04:07 PM   #7
billysvue
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Default Re: New Saturn Owner Need Help

It won't help it any.

Try your patch fix with the JB. Or search the JY's for replacement part.

What's that part made of? Get a compatible epoxy.. Prep it good.

...
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Old 10-23-2016, 05:57 PM   #8
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Default Re: New Saturn Owner Need Help

According to service manual descriptions, the black plastic is described as the intake manifold top cover and is replaceable. You state its black plastic so its probably a high temperature molded plastic piece. As suggested, JB Weld would be a good epoxy repair with high temperature resistance. Specs; 500F/260C, maximum temperature 600F/316C for ten minutes. Cleaning the area of grease, oil and fuel to prepare it for epoxy helps. If a crack is wide, allowing epoxy to seep thru like thick molasses, temporarily scotch taping one side will hold slow setting epoxy to harden in an hour or two, fully harden overnight. The peel off tape. In general, the longer it takes for epoxy to harden the higher strength it has. As a filler material, it perfect for filling in cracks and smeared over a little to bond over a larger area adjacent to the crack. If the crack is small and won't allow epoxy to seep thru, enlarge the crack so it can flow thru for more surface area to bond on both sides.

In a pinch, silicone caulking can be used too as this remains flexible and has high temperature resistance.

The extra air can ruin an engine since its not monitored/metered thru the air intake system; all filtered air must flow thru the mass air flow sensor (MAF) so the EFI system can determine correct air/fuel mixtures. Any air leak, a vacuum, that doesn't go thru the maf sensor automatically creates a lean fuel mixture. Lean mixtures can result in engine damage the EFI system may not be able to compensate for.
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Last edited by fdryer; 10-23-2016 at 06:02 PM..

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