Last week it was real hot, 114 degrees. My boost gage needle went from sitting near the "0" to sitting way lowere like the 9 o'clock position. It still works and seems accurate when it is in boost (pegs needle when full boost). Now, it is interminent. Some days it works and somedays it doesn't even move. How can I fix this? Vaccum line in dash? under hood? any suggestions are appreciated.
-thanks
-thanks