VS engine light (!) after replacing tensioner

[darkowen]

Hello,

I recenty had to replace my tensioner (the whole thing) due to a large crack forming along it and the belt squeeking.

The replacement was a success all but the fact that now my brakes are playing up and the exclamation mark engine light is on.

Anyone have any ideas on how to go about fixing this.

Thanks in advance

Matt

[accentstencil]

That means the hand brake is on, even if only slightly, so I would start looking in that area.

[darkowen]

i tried the handbrake on and off and its not changing that light there is another light with a P in it that goes on and off for the hand brake

[Brett_jjj]

That light shows a fault in the braking system.Maybe you have bumped or knocked off the wire that goes to the master cylinder pressure differential switch.If this wire is ok,check the fluid levels etc.How do the brakes feel when used?Does the vehicle have ABS?

[accentstencil]

i tried the handbrake on and off and its not changing that light there is another light with a P in it that goes on and off for the hand brake

Sorry about that, in later models it's the hand brake light. "P" does make more sense.

[darkowen]

That light shows a fault in the braking system.Maybe you have bumped or knocked off the wire that goes to the master cylinder pressure differential switch.If this wire is ok,check the fluid levels etc.How do the brakes feel when used?Does the vehicle have ABS?

The brakes are not working as they did before so i am narrowing down to that wire. The fluid is fine i checked it this morning. Where is this wire and how does it connect or how did i get it wrong when i reconnected it

[Brett_jjj]

The pressure differential switch wire,if broken or disconnected,wont affect how the brakes work.It is just there to turn the dash brake fail warning light on if one of the two brake hydraulic systems in the master cylinder fails.
Has ther car got ABS fitted?

[darkowen]

yes it has abs. just out of curisoty wat is the difference to the problem if i didnt have abs.

[darkowen]

hey guys so the problem is definetly the brakes i am trying to narrow down how to fix it.

i have attached some photos to help explain my situation.

[darkowen]

the first pic is the tensioner itself

the second is the little plug at the bottom of the brake fluid system that when removed makes the light go away but doesnt stop the brake problem

pic 3 and pic 4 is the brake fluid system

pic 5 is the wire that is on the bolt of the tensioner that i thought might have something to do with the brakes or could be causing the problem

[darkowen]

also when i push the brake when the car is off the vacuum works

then as soon as i start it the brake pedal goes loose

[hako]

From the pix it looks like you have no brake fluid in the master cylinder reservoir - if so you will be pumping air.

[darkowen]

its a bad pic the resevoir is full

[moff_man]

try moving the earth wire back to the nut it self. it looks like it on the alloy tensoner. it may be an earthing issue.

also try reproducing your steps, it maybe something you did on your tensoner job