do i have a vacuum leak
#1
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Thread Starter
do i have a vacuum leak
07 lsj, pulls around 28 lbs of vacuum at idle, under boost goes up to 11 or 12. no codes, no aftermarket intake, does have zzp hiflow cat on it and is not tuned.. i dont believe that would affect the vacuum on it tho. as always i appreciate any help you guys have. yes my throttle body is clean haha idk if the performance is really affected by it but its also been like this since i bought the car.
#3
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Thread Starter
i mispoke in the original post, its at 20 lbs vacuum at idle and -28 while cruising off throttle in gear. ive owned it for a year and it has always had vacuum like that, and its consistent. hasnt gotten worse by any means its always sat at -28 while cruising off throttle since i bought it. so im unable to compare how it feels driving now as to how it should drive normally i guess, thats why i asked if i have a vacuum leak..... i dont like you implying im stupid but understand why you did it lol the car had half of the main wiring harness eaten by a rodent and was keyed, so i picked it up for 1000 bux. fixed the wiring and its been a good daily driver ever since. but i havent looked into this issue cuz i didn't think it was a issue.
#4
#6
Senior Member
iTrader: (1)
i mispoke in the original post, its at 20 lbs vacuum at idle and -28 while cruising off throttle in gear. ive owned it for a year and it has always had vacuum like that, and its consistent. hasnt gotten worse by any means its always sat at -28 while cruising off throttle since i bought it. so im unable to compare how it feels driving now as to how it should drive normally i guess, thats why i asked if i have a vacuum leak..... i dont like you implying im stupid but understand why you did it lol the car had half of the main wiring harness eaten by a rodent and was keyed, so i picked it up for 1000 bux. fixed the wiring and its been a good daily driver ever since. but i havent looked into this issue cuz i didn't think it was a issue.
#7
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Thread Starter
thanks for the help guys. i only thought i might because my lnf only drops to 20hg. at any time any gear, so i wasnt sure if i had a issue with the lsj n just wanted to ask ppl who know about it haha
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