A weird injector problem
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Senior User
Joined: Oct 2006
Posts: 405
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From: Bremerton, Wa.
A weird injector problem
More in the continuing saga of my injectors from the excursion forum..
1) had to replace three injectors (1-3-5),2 harnesses and a sensor on vacation.
2) two days later,had a bit of power loss and mileage dropped.Got home and found another bad injector (8) and two harnesses.
3)2 weeks later and after a bad battery connection,the service engine light wouldn't go out.Took car to dealer and he found a whole bunch of codes and finally narrowed it down.He then ran a injector test and there was a long buzz and 6 short ones.Ran it again and it did the same thing.but there were 7 buzzes.Tried once more and got 8 and again 8..So,ok,headed out on a 400 mile r/t trip pulling the trailer and coming home noticed the power dropped again.Went back to the dealer,he tested it again and we got a long and 6 shorts and then 8.
Somewhere there seems to be a problem,but mebbee the test is temporarily fixing it...Help,does anyone have any ideas.. I'm going both crazy and broke..
1) had to replace three injectors (1-3-5),2 harnesses and a sensor on vacation.
2) two days later,had a bit of power loss and mileage dropped.Got home and found another bad injector (8) and two harnesses.
3)2 weeks later and after a bad battery connection,the service engine light wouldn't go out.Took car to dealer and he found a whole bunch of codes and finally narrowed it down.He then ran a injector test and there was a long buzz and 6 short ones.Ran it again and it did the same thing.but there were 7 buzzes.Tried once more and got 8 and again 8..So,ok,headed out on a 400 mile r/t trip pulling the trailer and coming home noticed the power dropped again.Went back to the dealer,he tested it again and we got a long and 6 shorts and then 8.
Somewhere there seems to be a problem,but mebbee the test is temporarily fixing it...Help,does anyone have any ideas.. I'm going both crazy and broke..
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
I would try and figure out which injectors are not buzzing when only 6 or 7 of them buzz. See if the missing injectors are always the same or if they move around. If the injectors that are not buzzing are the new ones, I would be suspect of a wiring or IDM issue. You can also swap injectors around to see if the problem follows the injector or stays in the same cylinder. Did you put in new or rebuilt injectors?
Trips to the dealer for a buzz test can get expensive pretty quick. Have you considered investing in your own scanner so you can do the buzz test yourself? AutoEnginuity PC Scan Tool (USB)
Trips to the dealer for a buzz test can get expensive pretty quick. Have you considered investing in your own scanner so you can do the buzz test yourself? AutoEnginuity PC Scan Tool (USB)
