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You are probably right.
Posted by: TomaS8 (637) on 2017-10-03 12:11:30 In Reply to: My experience is varnish ruins fuel pumps anyhow.. so if it's been sitting most likely helped it's posted by audinutt on 2017-10-03 01:03:45	Share \| Report

That is the primary reason fuel pumps go bad anyway; doing all that strenuous pumping through a never or rarely changed clogged filter.

Thread:

Sputter, no start 98 A8 - 98A8 2017-10-02 15:48:03 (468 views)
- **Twist, I feel stupid... - 98A8 2017-10-04 17:02:52 (467 views)
  - gotta love those easy fixes! - skiracer13 2017-10-06 09:39:06 (324 views)
  - could be the wrong fuel pump fitted, or it's dying. - JFrahm 2017-10-06 00:17:34 (325 views)
  - Bad seals - AUTO-UNION.US 2017-10-05 01:29:12 (396 views)
    - those seals are $$$ now, used to be less. I use this stuff on all of my o-rings, hoses, seals, etc - audinutt 2017-10-05 02:16:09 (544 views)
      - I use this stuff when I install O-Rings - hyperlogos 2017-10-05 08:42:46 (412 views)
  - - too funny - MichaelK 2017-12-12 22:08:55 (339 views)
- *Update, with the fuel line off - 98A8 2017-10-03 14:02:58 (409 views)
  - 99% it is the pump, but - BrianC72gt 2017-10-04 02:26:27 (394 views)
  - I recommend a vdo pump but the Polish pump was under $40 - audinutt 2017-10-03 18:39:47 (366 views)
    - Takes a few weeks to get the pump from Poland. My advice: buy ahead of time! - JFrahm 2017-10-03 19:16:19 (338 views)
  - And the winner is......audinutt!!! - TomaS8 2017-10-03 16:48:58 (352 views)
- It primed but no continuous fuel. - TozoM8 2017-10-02 16:26:41 (374 views)
  - Bad engine speed sensor? - BrianC72gt 2017-10-02 21:26:14 (392 views)
    - It didn't throw any codes for it but.. - 98A8 2017-10-02 23:34:27 (374 views)
  - That would make sense, shutting it fully off and back on - 98A8 2017-10-02 17:35:44 (417 views)
    - Any time you have a fuel delivery problem, step 1 is checking the fuel filter. - hyperlogos 2017-10-02 18:26:52 (369 views)
      - You know, I've never had a filter STOP flow in a gas engine.  -  CalG  2017-10-02 20:57:56 (386 views)
        
        Well, I have.  -  hyperlogos  2017-10-02 22:17:24 (358 views)
        
        right , Your examples agree with my observations  -  CalG  2017-10-03 01:09:00 (375 views)
        
        A no start, but when the ignition is shut  -  98A8  2017-10-03 01:30:06 (370 views)
        
        It can still be any part in the chain there, I think.  -  hyperlogos  2017-10-03 07:28:02 (366 views)
        
        What about air flow?  -  Michael K  2017-10-03 08:14:48 (352 views)
        
        Well, you know what they say... fuel, air, and spark   -  hyperlogos  2017-10-04 00:04:07 (365 views)
        
        Even with FI, I've never had trouble "testing" with a squirt of fuel down the intake !  -  CalG  2017-10-04 01:17:43 (357 views)
        
        There's also propane  -  hyperlogos  2017-10-04 07:40:20 (383 views)
    - I vote bad fuel pump. - audinutt 2017-10-02 18:18:09 (381 views)
      - I 2nd the bad fuel pump vote   -  02D2  2017-10-02 18:29:40 (354 views)
        
        I will tear into it and see if it runs on...  -  98A8  2017-10-02 19:02:38 (355 views)
        
        it probably is the prime cycle but it should come back on in crank  -  02D2  2017-10-02 21:47:32 (386 views)
        
        probably not delivering the volume needed.   -  audinutt  2017-10-02 19:42:20 (368 views)
        
        If the car's been sitting for a year and a half....I would check the fuel filter first.  -  TomaS8  2017-10-02 20:02:06 (364 views)
        
        My experience is varnish ruins fuel pumps anyhow.. so if it's been sitting most likely helped it's  -  audinutt  2017-10-03 01:03:45 (397 views)
        
        You are probably right.  -  TomaS8  2017-10-03 12:11:30 (356 views)
        
        Ahh, I missed that "sitting" part. Checking the filter and flow into it is a good idea! ;-)   -  CalG  2017-10-02 20:59:53 (373 views)

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