 Leaking Fuel Injector, Intermittent Problem |
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| 74914LE |
 Sep 23 2017, 11:09 AM
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#1
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Member  Group: Members Posts: 136 Joined: 6-April 04 From: Fort Worth, TX Member No.: 1,895  |
Does anyone have an opinion....on what would be causing a fuel injector to be leaking
intermittently? Is that symptomatic of a complete failure about to happen? I have had them start leaking, and need to be replaced, but never a start and stop. I noticed it dripping the last time I came back from a ride around town, and started it up today, to verify if that is was #3 or #4, and it is not leaking now. Even after bringing the engine up to temp., nothing? Head scratcher. Thought I would ask the question before I start swapping things out. It is on a 1.7lt car, and the fuel lines are in good shape. Thanks! |
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| JeffBowlsby |
Sep 23 2017, 12:58 PM
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#2
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914 Wiring Harnesses Group: Members Posts: 8,470 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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Send it in for cleaning/pressure testing. If it leaks, there is often no charge other than your shipping cost.
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| 914_teener |
Sep 23 2017, 01:15 PM
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#3
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914 Guru Group: Members Posts: 5,193 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
(IMG:style_emoticons/default/agree.gif)
Yes I have had one do that. The pintle can be sticking or the plastic body to the metal part when they heat up. They usually leak there. Replace it or your car may... (IMG:style_emoticons/default/blowup.gif) |
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| 74914LE |
Sep 23 2017, 07:18 PM
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#4
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Member Group: Members Posts: 136 Joined: 6-April 04 From: Fort Worth, TX Member No.: 1,895 |
Who do you recommend for sending in Injectors for Cleaning/Testing?
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| 914_teener |
Sep 23 2017, 07:48 PM
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#5
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914 Guru Group: Members Posts: 5,193 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
QUOTE(74914LE @ Sep 23 2017, 06:18 PM)  Who do you recommend for sending in Injectors for Cleaning/Testing? I used Witchhunter....they are on the net...been a while but if they don't pass you don't pay. |
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| mepstein |
Sep 23 2017, 07:50 PM
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#6
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914-6 GT in waiting Group: Members Posts: 19,215 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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Mr injector
About $17 an injector + ship. He only charges for the ones that work after cleaning. Flow chart before and after. They come back in a couple days with new seals and hose and look like new. I use a small usps priority box. He’s done at least 100-150 injectors for me. |
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| TravisNeff |
Sep 24 2017, 02:23 AM
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#7
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914 Guru Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region
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I had one like that, that leaked intermittently and sent it off to Mr injector. Bad unit and needed to be replaced. 3 others serviced and cleaned up really good.
Got a brand new bosch injector and installed, then a bunch of backfiring. Found out it was the new injector and sent that baby off to mr injector with some CIS injectors I needed to be serviced. WOW, 45% loss in that brand new injector. Not sure if it was shit in the fuel system or a bad injector. Anyways they fixed it up as good as new. Got a nice chart of before and after, quick service and 3 jolly ranchers and a thanks for being a repeat customer. Its nice when they think enough to remember you. My advice, if you can get a used injector at a good price, send it off to mr injector, with the others. After 40 years, the QC isn't there anymore for the brand new stuff. |
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