No vacuum??? WTF?

[turbodohc20]

hi,

today i was driving my talon, hard. Parked it shut it off, let it sit for 10-15 mins. Upon starting it back up I had No vac. All Vac lines were OK, no leaks. I took the Boost gauge tap off and blew into it and the needle would move. Put it back on still nothing. I turned it off and on a few times and still nothing. I'm T'ed off my FPR since I blocked off the EGR and have no other vac lines. Well I decided to drive the car anyhow and once I got a little boost the gauge starting working perfectly again. Any thoughts on what caused this? It was not a vac line off, No kinks, everything on the datalogger was reading fine.

Thanks

 

[maynard]

hi,

today i was driving my talon, hard. Parked it shut it off, let it sit for 10-15 mins. Upon starting it back up I had No vac. All Vac lines were OK, no leaks. I took the Boost gauge tap off and blew into it and the needle would move. Put it back on still nothing. I turned it off and on a few times and still nothing. I'm T'ed off my FPR since I blocked off the EGR and have no other vac lines. Well I decided to drive the car anyhow and once I got a little boost the gauge starting working perfectly again. Any thoughts on what caused this? It was not a vac line off, No kinks, everything on the datalogger was reading fine.

Thanks

Was this your stock gauge or an aftermarket ?

 

[turbodohc20]

Was this your stock gauge or an aftermarket ?

Autometer, T'd into FPR

 

[maynard]

Autometer, T'd into FPR

I have an autometer gauge too and sometimes it likes to stick for some reason. I'll give it a good flick and it go down to around 20 in hg . It will stick at 10 psi then jump to 15 at full boost sometimes too. Maybe you just need to slap your gauge around a little.

 

[oldman]

hi,

today i was driving my talon, hard. Parked it shut it off, let it sit for 10-15 mins. Upon starting it back up I had No vac. All Vac lines were OK, no leaks. I took the Boost gauge tap off and blew into it and the needle would move. Put it back on still nothing. I turned it off and on a few times and still nothing. I'm T'ed off my FPR since I blocked off the EGR and have no other vac lines. Well I decided to drive the car anyhow and once I got a little boost the gauge starting working perfectly again. Any thoughts on what caused this? It was not a vac line off, No kinks, everything on the datalogger was reading fine.

Thanks

1. Remove the hose from the gauge and put you finger on it, if you feel vacuum you have a bad gauge. If not go to 2.

2. Remove the hose from the T off fpr, put your finger on the T. If you feel vacuum there, replace the hose to the gauge. If you still don't then you have a bigger problem.

Make sure let the turbo cool down next time.

 

[Defiant]

Check your sensing line for a kink.

 

[DSMTalonAWD51]

autometer guages stick sometimes. When i start everyonce in a while it will stay at 0psi, but if your car is idling fine you dont have a vacuum problem. Even a small vacuum leak you would notice an idle difference. Just drive it around, give it a little boost, and that may help the needle to drop back down to where it should be. Works for me.

 

[turbodohc20]

Yea I think it was just stuck. Its only done it that one time and it quit as soon as I got a little boost. Car ran fine so I don't think its a problem.

Thanks for the replies