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Wich brand gaskets brand does everyone prefer? -
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I don't think you can just disconnect EGR without tuning it out of the PCM. Stock pipe size is about 3" at the head pipes, but squished...
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0411 swap follow up vid from LT Tolman:
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Nolandrm replied to the thread 1999 burban 7.4 possible maf issue.awesome thank you!
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Nolandrm replied to the thread 1999 burban 7.4 possible maf issue.yeah i cleaned it up when I replaced it. the port on the 454 vortec throttle-body is rather large comparatively but i did clean the area.
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The '99 Factory Service Manuals are in Reply #77 of this thread. But here is a direct link to where you will find them: ('99 FSM...
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Nolandrm replied to the thread 1999 burban 7.4 possible maf issue.Egr and iac are new. I have a scanner but because it’s surging everything is bouncing up and down. Where on the forum do i need to look...
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Get a scanner on it and see what the MAF is reading at hot idle and compare it to what's listed as the normal range in the manual. You...
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Nolandrm replied to the thread 1999 burban 7.4 possible maf issue.I sprayed around yesterday and nothing. Brakes are hydroboost. And sprayed it with cleaner.
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Spray brake cleaner around the areas where you think there is a vacuum leak. Also, check your vacuum hoses, power brakes, and any others...
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Nolandrm replied to the thread 96 GMC K2500 Suburban Restoration (with a couple of mods).If you dont mind me asking, what did it cost to have it repainted?
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Ok so, truck when idle in park rpm will dip down to 300ish then recover to norm then do it again and so on. There are no codes present...
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They are not L29 heads, but they have the same size intake ports. The HT 502 heads are not L29 heads or TBI heads. They are crate engine...
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https://sdparts.com/i-24502704-chevrolet-performance-12562917-gen-v-vi-big-block-iron-cylinder-head.html Not l29 heads . Note the egr...
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Nolandrm reacted to L31MaxExpress's post in the thread HT502 compatible with L29 intake etc? with
Like.
From memory the HT502 has the L29 heads and cam on it. Atleast the 454SS TBI version I installed nearly 20 years ago did.
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