|
Post by geeves on Aug 9, 2005 18:49:44 GMT 11
This is a curly one I need advice on. Ive put it in electrical as the vacume pump is part of the alternator. I was having a play the other day with cadence braking. This is where you practice stopping under control on a slippery surface useing several short hard brake aplicationsin quick succession. Problem is that after the 3rd aplication I ran out of vacume resulting in hard pedal and brake warning light on.Very disconcerting with 4 wheel discs and no boost. Vacume returned while holding the pedal on the 4th push and I have been told this is normal on a diesel but need to check. Question could I ask nicly for a few of you to try this next time they are in there car and let me know the result. With the engine idling press the brake pedal hard 4 or 5 times in quick succsession. Best not to be moveing at the time I dont want any ecsess tyre wear on my sholders. If the peddle goes hard and the light comes on then this is indeed normal. If not I have a bad vacume pump or vacume leak. All the hoses look ok but any suggestions where to look for a leak as the alternator is only 2 years old. If normal is there any easy way to increase the size of the vacume resivour or install an alterative pump?
|
|
Dave M
Isuzu Baby
'89 Bighorn 2.8 LWB
Posts: 22
|
Post by Dave M on Aug 9, 2005 19:23:56 GMT 11
What you describe is perfectly normal for a diesel. When the vacuum pump is getting tired; more noticable when idling low when the engine is pretty hot, the light will come on easier.
|
|
|
Post by draganlada on Aug 9, 2005 23:03:50 GMT 11
I didn't try that procedure yet ( may try tomorrow ) but I'm not shore if brake warning light has anything to do with vacuum,I always tought it shows low brake fluid level ?!
|
|
|
Post by geeves on Aug 10, 2005 12:09:03 GMT 11
It shows any brake fault. I accidently knocked the vacume pipe off on mine a while ago. Brake light stayed on
|
|