WTB advice please!! - ZR-1 Net Registry Forums

George45 · 04-06-2017

Easiest to just raise the hood, get in the car and turn the ign. key to the on position. You will hear the pump. It will run for a few seconds and then stop if normal. After a few seconds it may run again. If it just runs continuous you have a major leak.it's pretty hard to find a car with "0" leakage. So it is ok if it runs for a couple of seconds, stops and then after a few seconds cycles again.My 91will initially run a few seconds, stop for about 5 seconds and then run for a second or two and then stop again.somewhere on the site there is a reference that gives a service note about what is acceptable for the pump cycle when it comes on and off.I never hear mine when I am driving but sure notice the difference when all 16 injectors are kicked in.

04-06-2017	#26
George45 Join Date: Jul 2016 Location: Central Oregon Posts: 44	Re: WTB advice please!! Easiest to just raise the hood, get in the car and turn the ign. key to the on position. You will hear the pump. It will run for a few seconds and then stop if normal. After a few seconds it may run again. If it just runs continuous you have a major leak.it's pretty hard to find a car with "0" leakage. So it is ok if it runs for a couple of seconds, stops and then after a few seconds cycles again.My 91will initially run a few seconds, stop for about 5 seconds and then run for a second or two and then stop again.somewhere on the site there is a reference that gives a service note about what is acceptable for the pump cycle when it comes on and off.I never hear mine when I am driving but sure notice the difference when all 16 injectors are kicked in.