Bluemustang
Well-Known Member
- Thread starter
- #1
What vacuum readings are you seeing in your GT? I have a JLT air intake
and today I was seeing 18ish-20 at idle in park and 16ish-18 in 1st gear.
I have a Lund tune, so it runs the fans and idles slightly higher than stock. Sometimes my idle vacuum will drop from being steady at 18 and go to 16.5 and the come back up. I looked at the hoses and everything looks OK as it did before.
Usually I see 18-19 in 1st gear at idle, but today after I had my shop do an oil change, it never got over 18. But it is a lot warmer today than it has been so I wonder if that affects it.
Should I be concerned about my idle vacuum readings dropping into the 16s?
and today I was seeing 18ish-20 at idle in park and 16ish-18 in 1st gear.
I have a Lund tune, so it runs the fans and idles slightly higher than stock. Sometimes my idle vacuum will drop from being steady at 18 and go to 16.5 and the come back up. I looked at the hoses and everything looks OK as it did before.
Usually I see 18-19 in 1st gear at idle, but today after I had my shop do an oil change, it never got over 18. But it is a lot warmer today than it has been so I wonder if that affects it.
Should I be concerned about my idle vacuum readings dropping into the 16s?
Sponsored
