Question about 2002 Saab 9-5

2 Answers

Could it be the Fuel Pump?

My 2002 Saab 9-5 will crank over but failed to start 2 days ago. Before that, I drove to work and home without any indications there were issues with the car.

I inspect the DI cartridge and swapped with my spare with no luck. I inspect the fuel pump fuse and that didn't have any effect. I proceeded to jacked up the rear-end of the car and crawl underneath the car with a mallet hammer and start banging on the gas tank for several minutes. Waited...start the car with no effect. Wait for a few minutes, now, I had my wife crank over the engine and I started to bang on the gas tank once more. Well, what do you know, the car started!!

This whole time, the car will not start the pump could be the culprit, but the whole time I could hear the pump pumps for about 5 seconds everytime I turned on the ignition key.

Could it be the pump or my fuel filter is glogged or something else???

Please Help!!

Thank you in advance.

Quincy

Posted by on

  • 4 more comments 
  • Quincy N. Dec 02, 2008

    Hi and thanks for your help. It was coincidence that the car started by me pounding on the gas tank while my wife cranked over the engine. However, I couldn't get it started again, therefore, I had the car towed to the dealership. It turn out the the Crankshaft Posiition Sensor was bad. I had them replaced the Crankshaft Position Sensor and off I go again.



    Of course, they tried to sell me about $1600.00 more services since my car was "neglected" they said. I told them no thanks, I will pay only for the work on the Crankshaft Position Sensor.



    Again, thanks your advice on the fuel line.



    Quincy

  • Quincy N. Dec 03, 2008

    I know, the symptom sent me a loop as well when the car started while I was pounding underneath the gas tank. Unfortunately, I am live in a very cold climate at this time of year (MN) and no heat in the garage. I will definately DIY next time this thing goes out.



    Again, thanks for sharing your knowledge with all of us.



    Regards,


    Quincy

  • Quincy N. Jan 01, 2009

    Happy New Year everyone!!



    It's been awhile since the last time we talked about fuel pump and fuel delivery.



    My car has been running flawlessly since the CPS was replaced. Now, I have a question about replacing the Fuel Pump check valve. My Saab does suffer from extended cranking from sitting 5-10 or up to a day. This has been a problem way before my CPS went out and I been meaning to do something about for the last 2 years now.



    So, how do I replace this fuel pump check valve? Should I let the professional Saab Technician do the work or something I can easily take care of it during the summer warmer months?



    Your thoughts on this matter.



    Thank you.



    Quincy

  • Quincy N. Jan 01, 2009

    Happy New Year everyone!!



    It's been awhile since the last time we talked about fuel pump and fuel delivery.



    My car has been running flawlessly since the CPS was replaced. Now, I have a question about replacing the Fuel Pump check valve. My Saab does suffer from extended cranking from sitting 5-10 or up to a day. This has been a problem way before my CPS went out and I been meaning to do something about for the last 2 years now.



    So, how do I replace this fuel pump check valve? Should I let the professional Saab Technician do the work or something I can easily take care of it during the summer warmer months?



    Your thoughts on this matter.



    Thank you.



    Quincy

  • kunudrum Jan 07, 2009

    I have a 2001 Saab 9-5 that will start and run for a minute or two, then stop. It seems like it is not getting fuel, but I would think that if the fuel pump went, it would no longer start. Could this be a clogged fuel filter?

  • Quincy N. Oct 23, 2012

    So, the BMW check valve banjo should be installed from the line that came out of the gas tank or going to the engine instead? Otherwise, this is a great suggestion!!

×

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Vice President:

    An expert whose answer gotĀ voted for 100 times.

    Sniper:

    An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.

  • Expert
  • 76 Answers

It could be the anti-drain back valve (check valve) is stuck or it could be the Walbro fuel pump which is known to be good up to the 80,000 to 120,000 mile range. The banging on the tank trick working usually means fuel pump.
The typical symptom of a fuel pump check valve failure is extended cranking time during startup. What generally occurs here is that the check valve in the fuel line sticks open causing lack of fuel pressure. This usually occurs after the car has been sitting for a while or overnight. The fuel pressure leaks down causing the fuel pump to have to work very hard to push the fuel from the tank to the fuel rail. The symptom is similar to vapor lock but not quite. The solution to this is to replace the fuel pump check valve which can be difficult in itself. Be very cautious when attempting this repair because of the dealing with the fuel system and this always presents a potential FIRE HAZARD!!!!!!!
NOTE: When doing this job, be careful. If you break the link with no check valve in the fitting you will have to replace the entire fuel line because Saab does not offer the fitting by itself. Being a "Bull in a china shop" would not be a good idea here. If you break the valve you can replace the valve by itself only if you purchase the complete line and remove the valve from the new line and install it in the old line. They valves become brittle over time and can easily break when removing the fuel pump.
Fuel pump failures often cause the engine to buck when going up hills or just quit completely. You can test the fuel pressure using a fuel pressure gauge. The pressure should about 40 PSI (approximately). The location of the pump depends on which car you have. On the later model 900, 93, 95, and 97X the fuel pump is located in the fuel tank and the tank must be removed to replace it.

Posted on Nov 29, 2008

  • Jeff
    Jeff Dec 03, 2008

    I had briefly considered the CPS since it is a known failure part. Among other things it sends the ECU a signal telling it which cylinders are on the upstroke on startup so the ECU fires the plugs in those two cylinders to start things rolling and the Trionic can then tell by which cylinder fires where things stand and sequence firing thereafter. Your comment about pounding on the fuel tank sent me off to thinking along fuel delivery issues.
    I have replaced the CPS on NG 900s, OG 9-3s and a few 9-5s. The former two are easiest as they can be done from above. The 9-5 is a little more crowded on that side of the block so I do them from beneath. This is a good DIY to know since they can fail as early as 40,000 miles. The job takes about 1/2 hour and the part is only $68.40 for the 2.3 L turbo at eeuroparts.com. A single T-25 or T-27 (IIRC) Torx screw holds it in place.


×

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

To eliminate the hassle of dropping my tank and breaking any fuel line links or retaining clips, I replaced the banjo bolt leading into the fuel filter with one that has a check valve built into it. For my 2001 9-3 SE, the bolt is a 14M x 1.5 pitch. I used BMW part # 32416781261. It is a one-way check valve of the right dimensions, flowing in the proper direction and comes with 2 copper crush type washers. The BMW application is for newer model power steering units but it has worked perfectly in this application on my car for the past 2 months. Fuel pressure is not reduced, even at WOT and the car starts within 2 or 3 seconds of cranking regardless of temperature or how long it has been sitting.

Posted on Oct 22, 2012

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2002 Old ALERO drove home find didn't start later turned over fine but didn't fire replaced fule pump about 2 months ago


Pull a plug wire , set the end close to the engine, crank it and watch for spark. No spark could be the cranks sensor, wires, ignition module , fuse, or PCM. Have the codes read. Could be the fuel pump too. I have had them die shortly after installs.

Aug 28, 2016 | 2002 Oldsmobile Alero

2 Answers

ARE THERE ANY MORE FUZES THAT CAN CAUSE FUEL PUMP TO FAIL?


IF you are talking about the Fuel pump...Check Fuel Pump Relay

Feb 22, 2016 | Cars & Trucks

1 Answer

Where is 2002 saab fuel reset switch


Where is 2002 saab fuel reset switch - Fixya

www.fixya.com/cars/t25565243-2002_saab_fuel_reset_switch Mar 13, 2015 - Where is the fuel pump reset switch for a Saab 2002 ... side of engine by firewall passenger side 1/2 way up bock with single wire going to it.

Mar 13, 2015 | 2002 Saab 9-5

1 Answer

Saab stop running and now wont start


crank sensor . ? di pack ?

May 20, 2013 | 1999 Saab 9-3

1 Answer

Can a faulty ignition switch ALONE cause 0 fuel pressure when cranking?


If you have 100,000 miles or close to it you needed or would need a fuel pump anyway.Your mechanic sounds like a knowledgeable skilled honest one, he didn't even charge you for some items.
Stick with him/her as you both will get all the problems solved.
The work he has done is smart logical work so far.
Next time it does not start right away,keep cranking the engine to get the oil pressure up.If it starts when the oil pressure builds it may be you are not getting a prime cycle when you first turn on the key some times.

Mar 01, 2017 | 2003 Pontiac Grand Am

1 Answer

1997 Ford F250 4.6L. Went to leave for work 2 weeks ago and wouldn't start. It would crank, but not start. Left it for a couple days, about 4 days and then tried it and it started. So I cut it off and let...


If you don't hear the pump running, it's likely not the fuel filter. However, you'll need to determine if the pump is getting power when it will not start. There should be a fuel pump inertia switch identified in the owner's manual. It's likely near the passenger side kick panel inside the truck. This is typically a convenient place to check for voltage from the fuel pump relay to make sure voltage is getting to and through the switch. There have been a fair number of folks that have had issues with the inertia switch failing. If you have voltage through the switch for about a second after the ignition switch is first turned to the Run or Start position, then you need to find out if the power is making it to the fuel pump. If there is no voltage to the inertia switch immediately after they key is turned to Run/Start, then you need to work towards the battery.

-Rod

Apr 04, 2017 | Cars & Trucks

1 Answer

2005 silverado cranks but won't start


I had the same problem . on my 2002 silverado it turned to be the fuel pump failed because the fuel filter was clogged. I did the work myself could saved myself 219.00 and labor if I replaced a 7.00 $ Filter .

Apr 25, 2012 | Cars & Trucks

1 Answer

Myster Diagnosis?!


spray fuel into the throttle body and see if it stays running,then if it does ,suspect your fuel pump.
here are some other possibilities,and what you should do is a scan to see what code triggered the check engine light.....iac(idle air controller),throttle position sensor,crank or cam sensor,plugged catalytic converter,defective air flow meter,bad ignition module

Jul 23, 2009 | 2008 Saab 9-5

1 Answer

1997 s-10 sames to get vapor lock. after filling up with gas,drove truck home (4miles} left sitting in drive way (hot sun) tried to start 4:pm. 9:pm 9:am removed gas cap started up first time. Aprox....


Change your fuel filter, it may have gone it's life time and is getting to dirty to let fuel flow properly. Your fuel pump to may be getting weak, if the fuel filter is dirty the pump works harder and heats up and could be over heating the fuel pump relay too. The fuel pump relay i believe is in the glove box behind a panel that say relay, there should be (3) in there and the middle one is the fuel pump's. switch then around after you change the fuel filter and if you get a chance, check your fuel pressure at the shredder valve. Good luck and hope this help's if there is a Auto Zone around you, you can ask to use the fuel pressure gauge to see what fuel pressure you have and they'll have the step by step instructions on how to do it and takes about 5 min to do and will have the fuel filter and step by step to replace that too. Keep me posted, be glad to help.

Jun 08, 2009 | 1997 Chevrolet S-10 Pickup

1 Answer

1996 9000 CS will not start


try adding some HEET to it it is a gas line antifreeze product which also takes care of water in the gas other then that you may need a fuel pump which will require a towe

Oct 24, 2008 | 1996 Saab 9000

Not finding what you are looking for?
2002 Saab 9-5 Logo

4,169 people viewed this question

Ask a Question

Usually answered in minutes!

Top Saab Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22082 Answers

yadayada
yadayada

Level 3 Expert

74115 Answers

rgbypoet

Level 2 Expert

166 Answers

Are you a Saab Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...