Injector Click Test (outside of motor) Options

[lsintampa]

OK,

I hooked up a pig-tail to this injector. Then I got a 9V battery and tapped the pig-tail numerous times.

I never hear the injector click - and I'm assuming that it should.

The pig-tail does spark though - as if there is a short - which seems odd.

So, what is that telling me?

BTW - PO has said that all the injectors were cleaned and tested and all tested and sprayed well. They were however sitting in a baggy for three months. I can't imagine that they just went south????

All four injectors and the cold start valve all behave the same way.

Thanks,

Len

[aircooledtechguy]

I just went through this on a friends car that uses the same injectors. We cleaned them about 6 weeks ago in my ultrasonic cleaner and bagged them. Last week we went to fire up the motor and only had 2 working inectors. So I pulled the offending injectors and bench tested them just like you had done. No click, but passed electrical test. They were just stuck.

I simply banged them against the corner of my vise on the work bench a couple times and that was all it took. They began to click and the car was soon running on all 4 cylinders again. The moral of the story is this: If they don't work now, what's it gonna hurt them to get bashed a bit on the vise and see if that un-freezes them?? If they break,. . . well,. . . they're already broken so you have nothing to loose. (IMG:style_emoticons/default/smash.gif) (IMG:style_emoticons/default/biggrin.gif)

[lsintampa]

I just went through this on a friends car that uses the same injectors. We cleaned them about 6 weeks ago in my ultrasonic cleaner and bagged them. Last week we went to fire up the motor and only had 2 working inectors. So I pulled the offending injectors and bench tested them just like you had done. No click, but passed electrical test. They were just stuck.

I simply banged them against the corner of my vise on the work bench a couple times and that was all it took. They began to click and the car was soon running on all 4 cylinders again. The moral of the story is this: If they don't work now, what's it gonna hurt them to get bashed a bit on the vise and see if that un-freezes them?? If they break,. . . well,. . . they're already broken so you have nothing to loose. (IMG:style_emoticons/default/smash.gif) (IMG:style_emoticons/default/biggrin.gif)

Ya know, I have said for years that the best tool I've ever purchased was my 3 pound sledge hammer. Would you know that soaking them in blaster overnight, then whacking the crap out of them on the sides, freed all four up. Now they click... of course I feel like I'm way ahead of the game, but who knows if I damaged them in the process?

Anyway, I also found out that if you hold them upside down (fuel supply nipple pointing down) and gently tap them on something solid - you dislodge any fluid and associated gunk and it comes out. When I did this to each injector, the stuff coming out was discolored (rusty looking) stuff. If I clicked an injector, then removed as much gunk by tapping upside down, the click would get louder and louder. So I did this until I couldn't get any more gunk out.

I'm taking them into the shop again for cleaning, screens - and hope they are good enough to run with.. at least for now.

(IMG:style_emoticons/default/w00t.gif)