well different engineers work on different things, stage kit has nothing to do with the brakes still being worked on...

 

You probably didn't get any replies because nobody has any new information. What's the big deal with letting the car idle for a few seconds before you take off, anyway? High performance vehicles with low startup vacuum have been dealing with this "issue" for years.

Have you received the software fix yet?

 

 

I have a thought to this soft brake issue...

Most say to just wait. I would have no issue with that most of the time.

I do have an issue when I am responding to EMS calls and every second counts.
My delay in repsonse could mean something very dire for someone else.
I live at the top of a very steep hill and by the time I am approaching the T intersection at the bottom, it gets quite scary at times.

My dealership was not helpful at all.

I hope GM resolves this soon...

Thanks

Mike

 

I understand Mike and I am sure something will get worked out from all indications we have.

I know you need to react fast but if you start your HHR first even by remote by the time you walk the the SS and have your belt on you should have plenty of vaccum. From what I have seen in my own and others replys it takes little time to build up.

 

You don't get it. I let the car run, back out of my garage, (in reverse), stop, put it in drive and move on down the driveway (100 ft) and try to stop and the car goes into the street from lack of pedal pressure. Maybe that's okay with you; however, I have a 2007 Solstice, GXP, with the same engine and it has no problems. Think about it for a second, if GM can built a 2007 Solstice or Sky w/o these problems, why can't they do the same to the 2008. What is the difference? Any thoughts master mechanic?

 

You might have something else wrong with your brakes then what all others are talking about like a bad booster or a vac. leak other then low vac. at start up. After warm up or driving are the brakes better or still high peddle press. needed?

 

On the other threads it has been stated that GM now has a Fix........

 

Is GM sending a notice to customers that the fix is avaible just go to the dealership and ask for the fix?

 

I do get it but they all are not acting the same or to the same degree yours is that is why many are not are out rages as yourself.

I hope you also have taken note that this is also the same problem for many in the Solstice and Sky. Some but not all of the cars have had the same problem. In that case your lucky and have one like my SS that is not an issue.

This I believe is part of what has taken so long to find a repair for it. I also believe GM bought back the few to tear them apprt to se if they could figure out the cause and how best to repair it on vehicles on the road.

Also add into the mix that these vehicles use some of the same parts but they are still alittle different in set up and tune

I think the bleed down rate for vaccume in these vehicles is different. There has to be a leak somewhere but where. In most cars they have more vaccume at start up and we don't notice it. Being the turbo engine has a lack of vaccume it it does not build as fast.

The new vac pump set up will supply more vaccume at start up and and let it build faster. This should end the problem and I am sure will be installed on all new vehicles from this point on.

Also note this is often a bigger problem on manual trannys vs auto. If someone is in a lower gear and lets off the gas it can build more vaccume faster than a auto. But if you have a big enough leak even the manual tranny will show the problem.

Vaccume leaks are very difficult to find and when you add an engine that builds vaccume slow it creates what we have.

If you really want this fixed the new vac pump so far looks to solve this. I would contact the dealer and let them put it on. So far those who have had it done seem to be happy and feel it has fixed the issue unlike the computer reprogram.