Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

fuel pump

Old Feb 22, 2012 | 01:16 PM
  #1  
shelby151's Avatar
shelby151
Thread Starter
Track Day
 
Joined: Nov 2011
Posts: 14
Likes: 0
From: whitesboro new york
Default fuel pump

I have a 82 928 just wondering if i should hear the pump prime when i turn the key on,reason is i have starting issues and if i put a little fuel in the intake she starts right up,also if i shut her off she starts back up only does it when it sits for a long while.
Reply
Old Feb 22, 2012 | 02:40 PM
  #2  
brutus's Avatar
brutus
Burning Brakes
 
Joined: Jan 2007
Posts: 1,117
Likes: 2
Default

The pump runs when you engage the starter. Your check valve by the pump might not be holdong pressure. Or an injector leaks over time. Some late model V W s now run the pump when you open the drivers door just in case you are going to push the button to start the car.
Also your cold start injector or thermal time switch may not be doing their job. Which is to squirt fuel into the intake when the engine is cold.
Reply
Old Feb 22, 2012 | 03:23 PM
  #3  
shelby151's Avatar
shelby151
Thread Starter
Track Day
 
Joined: Nov 2011
Posts: 14
Likes: 0
From: whitesboro new york
Default

Makes sense because when i turn the key and it does not start i hear the pump as i stop turning over the the motor.
Reply
Old Feb 24, 2012 | 09:39 PM
  #4  
Luis_M's Avatar
Luis_M
Instructor
15 Year Member
 
Joined: Jul 2010
Posts: 109
Likes: 2
From: San Diego, CA
Default

On my 81 928S, the fuel pump runs very briefly when I turn the key to the On/Accesory position, before I turn it to engage the starter
Reply


Thread Tools
Search this Thread

All times are GMT -3. The time now is 09:48 PM.

story-0
Every Era of 911 Owner Explained in One Sentence

Slideshow: Every generation of Porsche 911 attracts a different type of enthusiast, and each one comes with its own very specific personality.

By Verdad Gallardo | 2026-06-12 12:49:28


VIEW MORE
story-1
Thinking of Buying a Porsche? Do These 10 Things First

Slideshow: Before you start shopping for your dream Porsche, make sure you've checked these 10 items off your list.

By Joe Kucinski | 2026-06-10 15:28:29


VIEW MORE
story-2
Pixar Pals Turned Into 1-of-1 Porsches!

Slideshow: three Porsche 911s inspired by three iconic Pixar characters!

By Michael S. Palmer | 2026-06-09 17:22:06


VIEW MORE
story-3
Theon Goes Full Carbon Fiber With Stunning New Build

Slideshow: Built around a carbon-bodied 964 and a naturally aspirated 4.0-liter flat-six, this bespoke commission highlights how far the restomod formula has evolved.

By Verdad Gallardo | 2026-06-06 14:41:46


VIEW MORE
story-4
Genius Porsche-Themed Gifts That'll Make Any Dad or Grad Smile

Slideshow: Looking for gift ideas for you Dad or your newest grad? Look no further than these Porsche-themed ideas.

By Joe Kucinski | 2026-06-12 10:37:13


VIEW MORE
story-5
10 Used Porsches Are Selling for Way Too Cheap

Slideshow: These 10 used Porsches offer more driving thrills than their price would suggest.

By Joe Kucinski | 2026-06-03 09:11:13


VIEW MORE
story-6
Tuner Is Converting Porsche 911s Into Shooting Brakes

Slideshow: A Polish Porsche specialist is moving ahead with one of the most unusual 911 conversions in recent memory: a shooting brake version of the 991-generation sports car.

By Verdad Gallardo | 2026-06-01 19:46:47


VIEW MORE
story-7
This Coachbuilt Creation Is A Modern Take on the Legendary Porsche 917

Slideshow: A Porsche Carrera GT has been transformed into a one-off coachbuilt machine that blends analog supercar engineering with styling inspired by the legendary 917 race cars.

By Verdad Gallardo | 2026-06-01 17:06:04


VIEW MORE
story-8
Is This Convertible Cayenne A Steal, Or A Returnless Investment?

Slideshow: A heavily modified Porsche Cayenne convertible with faux wood trim and a long list of flaws recently sold at auction for surprisingly little money.

By Verdad Gallardo | 2026-05-29 18:52:37


VIEW MORE
story-9
10 Best Non-Flat Six Porsches You Can Buy For Under $100K

Slideshow: If you have $100K to spend on a Porsche but want something a little different, these are the 10 best non-flat six Porsches you can buy.

By Joe Kucinski | 2026-05-28 15:36:11


VIEW MORE