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<blockquote data-quote="Nikuk" data-source="post: 679627" data-attributes="member: 555692">Umm, yes.When I had my &#039;99 GA GT, I was a member of a few N-body forums. The aluminum GM 3.4L V-6 motor is very well known for a Lower Intake Manifold gasket problem. Very, very common. I&#039;ve literally seen accounts of it letting go within 18k miles.Also, people have had the problem more then once. I.e. - @ 25k miles &amp;amp; again @ 60k miles.... etc.There are a few TSB&#039;s regarding it but no recalls (to the best of my knowledge). I&#039;ve been rid of the car (after doing my own LIM @ 65k miles) for ~6 mos., GM actually came out with a LIM kit (including the mani bolts, gaskets, etc) that you&#039;d need to do it.I&#039;ll try to find a few reference links for you in a lil bit. But, the thing is, it&#039;s not only Grand Am&#039;s, nor is it only N-Bodies... Anything from Malibu&#039;s (N boydy version) to *cough*Ventures*cough*...Average dealer time on the N-Bodies for R&amp;amp;R ranges from $500-700 for the job. Consider 5.X hours labor time per the shop manual + parts.If you do it yourself, as I did, it&#039;ll be around $270-300. It will take 4-6 hours.I&#039;m pretty sure that this will effect your year as well. I know of people with an &#039;02 3.4L that had the same problem.I&#039;m off to get links...Sorry, but I just wanted you to be aware of it.-Nick</blockquote>

[QUOTE="Nikuk, post: 679627, member: 555692"] Umm, yes. When I had my '99 GA GT, I was a member of a few N-body forums. The aluminum GM 3.4L V-6 motor is very well known for a Lower Intake Manifold gasket problem. Very, very common. I've literally seen accounts of it letting go within 18k miles. Also, people have had the problem more then once. I.e. - @ 25k miles & again @ 60k miles.... etc. There are a few TSB's regarding it but no recalls (to the best of my knowledge). I' ve been rid of the car (after doing my own LIM @ 65k miles) for ~6 mos., GM actually came out with a LIM kit (including the mani bolts, gaskets, etc) that you'd need to do it. I'll try to find a few reference links for you in a lil bit. But, the thing is, it's not only Grand Am's, nor is it only N-Bodies... Anything from Malibu's (N boydy version) to *cough*Ventures*cough*... Average dealer time on the N-Bodies for R&R ranges from $500-700 for the job. Consider 5.X hours labor time per the shop manual + parts. If you do it yourself, as I did, it'll be around $270-300. It will take 4-6 hours. I'm pretty sure that this will effect your year as well. I know of people with an '02 3.4L that had the same problem. I'm off to get links... Sorry, but I just wanted you to be aware of it. -Nick [/QUOTE]

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