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99 lumina starts then dies after head gaskets

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Old 07-01-2016, 10:01 AM
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I doubt missing one screw on the MAP is causing the issue.
Old 07-04-2016, 12:44 PM
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i,m pulling the injectors and putting new o-rings on them all and double check everything
Old 07-04-2016, 06:54 PM
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i took the injector rail off today and noticed there was one o-ring off of a injector..i,m getting new o-rings tomorrow..i hope that willm fix it
Old 07-04-2016, 09:47 PM
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Hoping that is the issue, let is now how it goes!
Old 07-05-2016, 07:22 AM
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Originally Posted by digger350
no havent checked the maf...i just took the whole duct work off as one piece...but i did have trouble with the map sensor that bolts to the upper plenum...dropped one of the screws and couldnt find it...is only on with one screw if that could make a difference...i,ve had to put it on the back burner for now until i get some free time
Make sure your MAP sensor is making a good seal. When I did the manifold gaskets on my Buick my MAP sensor got damaged and I was having the same problem that you are. I put in another MAP sensor and that cured it.
Old 07-05-2016, 03:37 PM
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just waiting on new o-rings and sleeves to come from napa in the morning....i hope that helps...getting on my nerves...i dropped one of the map sensor screws to the manifold...maybe i can find one at the junkyard tomorrow
Old 07-08-2016, 05:50 PM
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its running good now...i guess it was the fuel injector o-rings...now i have a small coolant leak on the little pipe thing in front of the valve cover...gonna pull it and try to fix it when it cools down
Old 07-08-2016, 05:59 PM
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Glad it is running now.]
You mean a leak with the coolant elbow going from the tensioner assembly to the lower intake manifold?
Did you use the Dorman Aluminum framed elbow?
Old 07-08-2016, 09:57 PM
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WilliamE, it'* a 3.1....
Old 07-08-2016, 11:12 PM
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Originally Posted by Tech II
WilliamE, it'* a 3.1....
Oh right, sorry I got the thread mixed up I think, got a lot going on with trying to start a job, my mistake.
What little pipe could they be talking about?


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