Hogdady

I've posted about this issue numerous times, but I can't get a handle on it. Lean fuel codes and stumbling/stalling. Map, maf and intake seals changed. Fuel pressure good. I don't have a tuner. What's the likelihood of a cracked intake?

sjsingle1

iTrader: (1)

pull it and find out

mcr10182

iTrader: (2)

just replace it with an ls6 intake cancel out the possibility and make more hp!

dhctss

iTrader: (3)

I just replaced my pos ls1 intake with a ls6 best bang for buck. you will feel a difference although some will tell you that is not true.

sam95transam

Another vote for pull it. I think used ones can be found for around 300-350. Its an easy job.

If you just want to find out if its the problem, I think you can spray carb cleaner around the intake and see if you have a spike in your RPMs. Though this may not work if there is a crack on the bottom or back.

LQ4-E39

iTrader: (7)

If you’re looking to replace your intake I have an LS1 intake I can sell you for cheap. bought it used in perfect shape for my swap and never used it because I got a good deal on a LS6 intake.

PM me if you’re interested.

Marc 85Z28

iTrader: (8)

Skimmed through your other threads.

Fix the vacuum leak in the PCV system.