I just had my Stillen SC put on my car. I left GRD and about half way home, I went to stop and my brake pedal would not budge. I had to use 2 feet and my emergency break to slow the car down. AGAIN, I REPEAT, THE PEDAL WOULD NOT BUDGE. This does not mean, that I applied pressure to the brake pedal and it hit the floor, but rather, it would not move. The harder I pushed on the pedal, the car would start to SLOW down. It freaked me out and I thought at first that maybe I lost all brake fluid. When I got home, I immediately check my power brake fluid and it was full. I called GRD the next day and the mechanic thinks that because I went FI, the FI might be keeping pressure on the vaccuum line for the brakes.


DOES THIS MAKE SENSE TO ANYONE HERE???

He also said that I might have a kink in the vaccuum line or that a valve in the vaccuum line has failed.


The weird thing is that when cruising down the freeway for an extended period of time, if I need to apply the brakes they initially work, but as soon as I let off of the brake and then apply the brakes again, I can't push the pedal in.

Also, if I am stopped at a light and I have my foot on the brake, the pedal finally starts to sink extrememly slow after about 30 sec or so. I need help. Suggestions as to what I might do to fix the problem myself. I do have an appointment with them, but until then... if it is an easy fix, I would really like to fix it rather than drive 70 miles to the shop.

Thanks.

 

go look at the power brake booster(behind master cyl.)and make sure the vac hose is still connected.if it is follow the hose to its termination point making sure there are no kinks and to be sure its still connected.in a little while after it stops raining ill go out and look at mine to see if i can help anymore.

 

Thanks. Can you post a pic so that i know where to look? Thanks again.

 

i dont have a scanner and cant post pics,but if you know where the master cylinder is the booster is the big round part behind it,there will be a black rubber hose coming off the booster which runs back behind the metal plate behind the engine(they prolly didnt touch this part i didnt)but what you need to check is at the back of the blower(supercharger)youll see a silver throttle body,its bolted to the blower,behind and below there should be 2 hoses connected to it one is for the power brake booster,make sure they are both connected(use a flashlight youll need it).let me know your progress i will stay on line for a while.also on the pass side there is a vac hose coming off the side of that same alum housing make sure it is still on.

 

take it back to grd.

 

as for right now i should be able to help him,i am looking at my old instructions with a vac diagrahm now.if he would look at his posts.

 

On the intake manifold and where the brake booster is a large vaccum hose they both have internel check valves in side they went bad. Same thing happend to me.The one on the intake leads inside where the battery is.Just keep following that line and you will come to the other hose in brake fluid compartment it is a rubber hose.

 

remember he has a stillen s/c it is routed a little different.

 

sorry I didn't reply right away. I had to go do some errands. I'm back now. I hope you are still on line, Oh, well...

 

IT'S WORKING.

There was a pinched hose. I twisted the hose so that the kink was taken out of it and immediately it started working again.

I'm so happy. THANKS TO EVERYONE THAT HAD A HELPFUL OPINION. YOU ARE TRULY AN AWESOME FAMILY.

 

The hose that went into the battery compartment was where the kink was. Thanks.

 

Glad to hear it's working... OK, group hug time!

 

Ha ha ha. Who is first? Lol

 

sweet disregard my new pm,glad everythings normal again,btw how do you like the stillen so far.

 

I love it, but GRD said that my A/F ratio went over 14.3 between 5k and 5 1/2k. So they have a call out to Stillen to find out why. Until I hear back from them I have been told to keep it under 5k. Also, Stillen claims 75hp at the wheel, but I had a dyno test before and after and I only gained 50. GRD said that companies are notorious for over exaggerating their #'s to get business. If that is the case, I am going to call Stillen and tear them a new one.

 

stillen is one of the worst about doing it,but when you get the a/f all square you should have more power.and yes thats a little on the lean side,make sure they talk to stillen on monday,tell them to ask for sam i think his ext is 130.