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Changing Intake Gaskets On 5.3 Tahoe

jgaff

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jgaff Enthusiast

jgaff

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Would anyone have a detailed set of instructions or know where I could find a set of instructions for changing the intake manifold gaskets on a 2002 chevy tahoe with a flex fuel 5.3 engine?

 

Also there are two different intake manifold gasket kits for sale for this vehicle. One has the two intake gaskets themselves and one smaller paper gasket that is shaped like a traditional thermostat gasket, but looks smaller. The other has another paper gasket with two holes that look to be about 1/2" and an O ring. Trying to figure out what these additional gasket and oring is for. One might be the knock sensor? Any help on this subjects, especially the instructions for changing it out would be greatly appreciated. Also, anything special to look for or be carefull with while doing this? Thanks in advance!! JGaff

AirForceAngler Enthusiast

AirForceAngler

Posted
Posted

Neither one of those gasket sets sounds right for a 5.3. They are usually a plastic framed gasket with rubber o'rings around the intake ports. The plastic pieces clip onto the intake manifold. The thermostat is also not in the intake. You may have a gasket set for the older small block engines.

jgaff Enthusiast

jgaff

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I have edited my original post to make it easier to understand. I am sure that I have the right kit for my 5.3L engine, but was just asking what the additional two gaskets and one o ring were for, and was wondering why one kit had only one paper gasket and the other has two and the o ring, in addition to the two manifold gaskets.

 

More importantly, I am still looking for information as to where I can find detailed instructions for changing out the intake manifold gaskets on this engine. Anyone that might know a link or website that has this information, I would greatly appreciate it!!!!

AirForceAngler Enthusiast

AirForceAngler

Posted
Posted

Ok, I see, they're additional to the plastic intake gaskets. It was a while ago since I changed mine out and can't remember the additional ones. Take a look on the manifold for an item that may have to get removed to change them out with the same shape as the paper gaskets. I also know there is a torque sequence and spec for the manifold itself. That was in the Chilton's manual I have for my truck but I don't have it with me at the moment. I'd recommend getting a Chilton's or Haynes manual for your truck do to this. Really helps! Good luck!

rdnkcpa Enthusiast

rdnkcpa

Posted
Posted
I have edited my original post to make it easier to understand. I am sure that I have the right kit for my 5.3L engine, but was just asking what the additional two gaskets and one o ring were for, and was wondering why one kit had only one paper gasket and the other has two and the o ring, in addition to the two manifold gaskets.

 

More importantly, I am still looking for information as to where I can find detailed instructions for changing out the intake manifold gaskets on this engine. Anyone that might know a link or website that has this information, I would greatly appreciate it!!!!

 

www.helminc.com. If you want really detailed instructions, order the service manual for it. I ordered a set for my truck, it has been very helpful.

alvocado Enthusiast

alvocado

Posted
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You can get a 1-year subscription to www.alldatadiy.com for $19.95 which includes the factory repair procedures. Google "alldata discount" to find a discount code. It's well worth the cost if you are doing your own repairs. Also check the dealer for your gaskets. I found that the GM parts were competitvely priced to aftermarket and you can get exactly the gaskets you need vs. buying a kit with gaskets you won't use.

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