Question about 1995 Oldsmobile Cutlass Supreme

2 Answers

I checked for engine codes no codes found should i replace fuel pump

Posted by on

  • 8 more comments 
  • edparcell Dec 12, 2009

    95 olds has hard time starting when it doesstart runs for a few then stalls replaced fuel filter and wires plugs and coil no engine codes fuel pressure reads 38

  • edparcell Dec 12, 2009

    how would i check for spark after engine stalls

  • edparcell Dec 12, 2009

    well now wont stall out its a intermediate thing

  • edparcell Dec 12, 2009

    it does start its just sometimes it starts hard and when it starts hard it only runs for a while now its not doing it it stays running for now as i said before i have reolaced coils and wires and plugs

  • edparcell Dec 12, 2009

    no it does it when ever lately more often then ever before

  • edparcell Dec 12, 2009

    the past few days been in garage it was having issues and then today it was acting up starting hard then i would try giving gas while starting and a small back fire would happen but not always then it started fine and still running good. when it was acting up it would run as long as i kept it at a higher idle

  • edparcell Dec 12, 2009

    has a3.1

  • edparcell Dec 12, 2009

    it has the 3.1 if th ecrank sensor or camshaft sensor is bad would it start at all? whywould it only do it some times and how can i test them and where are they located on the 3.1

  • edparcell Dec 13, 2009

    thank you for your input still not found the problem yet

  • edparcell Dec 13, 2009

    yes i replaced them when this problem first started and it never fixed the problem its been happing for a little while now but recently getting worse thats when i replaced tyhe plugs wires and coils all at the same time then the fuel filter and this morning replaced the throtle control senser it didnt help either so i took it back

×

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,168 Answers

Hello Ed.
Replacing the fuel pump before verifying the problem could be an exercise in futility.
Just because a car does not have a code stored does not allow one to jump to a conclusion.
Any number of issues can create a no-start.
First you need to home in on the problem, does it have ignition(spark at the spark plugs) or does it have fuel pressure?
A bad ignition module ( is very common with your model) may or may not set a code.
As with the fuel, or lack of it, you still need to verify that the power supply to the pump is good before pulling the tank out to replace the pump.
If you could home in a little on what the problem is and let me know a few more details I will guide you along.
Leave a question in add comments and I will check back.

KL

Posted on Dec 12, 2009

  • 4 more comments 
  • FUBAR Dec 12, 2009

    I see you have posted this question before.
    Definitely do not replace the fuel pump. It isn't your problem.
    Ignition coils, and modules were a problem as I mentioned previously.
    Have you checked for spark at the spark plug boot at each cylinder?


  • FUBAR Dec 12, 2009

    If you have an old spark plug insert it into one of the spark plug boots, set it on a metal surface on the engine blockand have someone crank it over while observing for spark on the plug.
    Do this at each cylinder.
    Now this isn't a definitive test as an exposed spark plug is easy to fire but it does verify that the crank and cam position sensors and the ignition module are working and allows the next step.

  • FUBAR Dec 12, 2009

    An intermittent problem is tricky to find.
    Ignition modules are a prime suspect as well as crankshaft and camshaft position sensors.
    Does it seem to be weather related ? Wet, cold, hot? Give me any clues such as this to help me help you.


  • FUBAR Dec 12, 2009

    Hi ED.
    Does your car have the 3.4 or the 3.1 liter engine?

  • FUBAR Dec 13, 2009

    Hello Ed.
    Your 3.1 only has the crank sensor.
    We check them in my shop with a lab scope to verify a good signal. You can check them with a scanner, it shows up as RPM in datastream, but a bad module will also shut off RPM in data stream.
    Crank sensors will sometimes act up but from what I see usually when they get hot they quit.
    I am only listing the possibilities.

    You mentioned a backfire when starting. I am guessing it backfired through the intake? This can indicate lean fuel or poor spark.
    Your fuel pressure is ok, so plugged injectors are still possible but unlikely.
    I am still thinking you have an ignition problem. The coils you put on were new?

    KL



  • FUBAR Dec 13, 2009

    Hello Ed.
    I did a little more digging on your system.There are two crank position sensors.
    The first crankshaft position sensor sends a 3 x signal to your ignition module . This sensor is mounted in the rear side of the engine block just above the oil pan.
    The 24x goes directly to the PCM and is used for detecting misfires and is mounted on the front of the engine near the harmonic balancer.
    And it does use a cam position sensor that also goes to the PCM. I didn't see it in the diagram initially.
    I had thought they did away with the rear sensor a few years before this, strange I haven't come across this problem.
    If they still use the same sensor they used in earlier years 3.1 they had a tendency to crack and lose signal. They can be a difficult thing to remove as there isn't much room to work in there.
    Remove the retainer bolt and turn and gently tug it out of it's bore. It's sealed with an "o"ring and may be stuck on the cast iron. The retainer tab is plastic and they break off easy.
    Worst case scenario is oil pan removal and tap it out from inside the engine.
    We have both learned from this experience.
    I owe you one!
    Thank you for your patience with me.

    KL



×

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Oldsmobile Master
  • 6,927 Answers

Well,if there is no fuel pressure to the injectors,yes,replace the fuel pump.If there is fuel pressure to the fuel rail,no,do not replace the fuel pump.Injector pulse has to happen,before the cylinders get fuel to fire.If the fuel injectors have no pulse,replace the crankshaft sensor.

Posted on Dec 12, 2009

  • 4 more comments 
  • Ronny Bennett Sr.
    Ronny Bennett Sr. Dec 12, 2009

    When it stalls,check for spark,and injector pulse,one or the other ,or both will be absent,we need to know where to look,fuel pressure sounds o k,but let`s check farther before changing parts out,and waisting time ,and money,let me know on this,we will go from there.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Dec 12, 2009

    Pull a plug wire,and hold it close to metal on the engine and turn the engine over to see if it sparks,use inslulated plies.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Dec 12, 2009

    It sounds more like fuel contamination.Try a bottle of lucas,with two bottles of heet,this is a good combination for fuel contamination,it will clean the injectors out,if they are clogged with fiber,The less fuel there is in the tank,the better,the additives will be more consentrated,and work better.About 5 miles of driving with the additives,should clear it up,if it is a fuel contamination.There is a awful lot of this going around.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Dec 12, 2009

    Try these fuel additives,let me know what happens.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Dec 12, 2009

    Try the fuel additives,it may be getting worse,because the injectors,are getting more clogged,the longer the fuel is run threw them.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Dec 12, 2009

    Ok,then,I don`t know what else to say here,maybe another tech can fix your vehicle,good luck.

×

Ad

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.
Good luck!

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:

2 Answers

2005 2KD Hiace, starts lazy,revs good when it starts but accelerator goes dead, check light comes on, then in about 2 minuets the engine dies. 093 code.


fault code is missing a letter and first number
so its P0093 large fuel leak

the fault list has list of what to check
http://www.obd-codes.com/p0093

Fuel injector failure, Fuel line common rail leak, Fuel pressure sensor malfunction
Fuel pump or lift pump failure, Fuel heater constantly on Fuel temperature sensor failure ,

Leaks at any point in the high pressure circuit Electrical connector corrosion or seating problems
Fuel pressure regulator malfunction Fuel filter plugged dropping the fuel line volume Injector pump leak
Fuel control actuator failure
Cascade overflow valve malfunction Short in the electrical harness at the injectors or to the ECM Fuel pressure limiting valve ECM failure
Copyright OBD-Codes.com

Jun 07, 2016 | Toyota Cars & Trucks

1 Answer

Engine shuts off after driving 45 min when parking in reverse.But 15 min before this engine and slippery road icon comes on.2 hrs later car starts and drives normal then shuts off again 45 min later.


most commonly found problem relates to an electronic component heating up and shutting down. Have you checked to confirm there is fuel pressure when the vehicle shuts off. Is the check engine light on. Have you checked codes ? I suggest hooking up a fuel pressure gauge and letting vehicle run till it shuts off while monitoring the fuel pressure. If you loose fuel pressure, next step is to confirm there power going to the pump, if there is power going to the pump with no fuel pressure replace pump. Another suggestion would be to check for spark when vehicle stops running to eliminate an ignition problem. good luck

Aug 17, 2015 | 2008 Toyota Highlander

1 Answer

Loosing fuel pressure every ten to twelve seconds


are you using a gauge? is this the 1.0L engine 3cylinders.
Trottle body injection (TBI) >
running or not?
the correct way to do this is measure at the fuel filter test port

ill quote the FSM
  1. Relieve fuel system pressure.
  2. Disconnect the fuel inlet line at the fuel filter and install a suitable pressure gauge on the line.
  3. Connect a jumper wire between the terminals of the fuel pump relay connector and check the system pressure on the gauge.
  4. Fuel pressure should be 25-33 lbs.
  5. As the pressure reaches 33 lbs., the relief valve in the pump should pulsate the pressure so it is always within specification.
  6. If the pressure is above specification, check for restrictions in the fuel lines. If no restrictions are found, replace the fuel pump. If the pressure is below specifications, check for battery voltage to the fuel pump and correct as required. If battery voltage is found, replace the fuel pump or fuel pump relay.
  7. Before removing the pressure gauge, relieve the fuel pressure again.
  8. Reconnect the fuel line. Start the engine and check for leaks.
end quote.

Jan 28, 2014 | 1993 Geo Metro

1 Answer

1997 subaru impreza 2.2 engine random cuts out and stalls


fuel pressure should be 34 - 38 psi.fuel pump could be failing.

Apr 05, 2013 | 1997 Subaru Impreza

2 Answers

Hi, I have been here before and felt I got good resonse...basically agreeing with everything I was doing to fix the repeated Engine light coming on. So here we go for further diagnosis... RECAP: All the...


Check for damaged or leaking fuel lines, also check fuel pump fitted correctly & pipe work not kinked causing low fuel flow, or it could be faulty fuel pressure regulator You may just be unlucky & it may be a faulty fuel pump,just because its new doesn't mean it can't be faulty

Mar 22, 2013 | 1999 Ford Taurus

1 Answer

Transit pump code p0216 how can i fix this


P0216 DTC - Injection Timing Control Circuit Malfunction and this means the diesel fuel injection pump has a timing failure. This could be that the injection pump timing needs adjusted OR the failure is internal to the injection pump and therefore non-adjustable.

NOTE: If your vehicle is a Dodge Ram with Cummins engine then be aware that fuel delivery problems frequently cause this code. Prolonged fuel delivery problems can cause injection pump failure!

Symptoms of a P0216 DTC may include:
Low power
Crank, but no start
Hard start
Displays an intermittent stumble or miss
Engine may start and then stall
Engine may appear to drive fine but surge at idle


The most frequent cause of this code is a bad injection pump due to poor fuel delivery. Fuel delivery problems could be:
A plugged diesel fuel filter
An in-tank blockage
Air in the fuel due to a cracked in-tank fuel ine above the fuel level
Bad transfer (lift) pump
Injection pump out of time


Possible Solutions: First, simply check if your injection pump timing is adjustable. If so, check the timing and adjust if necessary.

If you think that you may have a fuel delivery problem, then check the lift pump operation. On Dodge Ram with the Cummins engine, the lift pump should produce about 45 oz of diesel in 25 seconds of operation. This can be performed by disconnecting the fuel hose from the injection pump and pumping the fuel into an approved container. Bump the engine over but do not start it. Then the lift pump will operate for 25 seconds. If the fuel is aerated, then check/repair fuel line and recheck.

With the fuel hose connected the fuel pressure should be 10psi. If the fuel delivery tests fail, replace the diesel fuel filter and recheck.

If it still fails then verify there are no restrictions in the fuel tank

Then replace the lift (transfer) pump. IT SHOULD BE NOTED that if this code surfaced after a routine fuel filter replacement or if you have any of the above symptoms after routine fuel filter replacement, then suspect the fuel transfer pump. This occurs because even a weak transfer pump can still provide enough fuel for the engine to run. But when the fuel system\'s prime is lost due to fuel filter replacement, it may not restart again without fixing the fuel delivery problem.

If you found your injection pump to be bad, the lift pump should be checked for operation to protect the new injection pump. This is because weak or low output from lift pump are common cause of injection pump failure. There are some aftermarket kits that can be purchased to warn the operator when the fuel pressure/volume drops to level that could damage the injection pump.

Hope this helps (remember to rating this free answer and leave a testimonial comments).

Oct 11, 2011 | Cars & Trucks

1 Answer

1995 volvo glt 850 model year, 4.2 literes


Hi!

You meant a 2.4 litre engine, right?

Check:
- Fault codes from the diagnostics system.
- Fuel pump relay, located under the fuse box cover under the hood. If it's a green one labeled 103 it might be the culprit and should be replaced with the new and improved red one.
- The fuel pump itself, measure voltage to the fuel pump and make sure it's getting sufficient power. Can you hear the pump working when turning on ignition?
- Fuel filter might be clogged up. Located under car, by the right rear wheel.
- Unaccounted air entering through vacuum hoses. Spray them with start gas while the engine is idleing, if engine revs up you've found a leak.
- Throttle body might be in need of cleaning, probably a good idea anyway as it usually gives the engine a tad better performance.
- Mass airflow sensor might need replacement or cleaning of connector.
- If idle is rough check idle control valve.
- Make sure all plugs are firing, engine might be missing one cylinder, causing it to vibrate depending on engine RPM.
- Check that coil is ok.

Your problem doesn't sound like a camshaft/crankshaft position sensor, but you never know. Have the codes read, that'll probably help alot!

Well, that should give you some idea as to where to start checking...
Good luck mate!

Jun 05, 2009 | 1995 Volvo 850

1 Answer

1990 escort LX, automatic trans, #9 engine code,wont keep running


replace the injector or try some injector cleaner ,the petrol went manky when vehicle was left for so long ,and now i suspect its gummed up like the pump was

Mar 28, 2009 | 1990 Ford Escort

1 Answer

Check engine light on 2001 Ram 3500 5.9l diesel


need To know the codes and a reason why they did not replace the fuel pump and only the lift pump

Jan 16, 2009 | 2001 Dodge Ram 2500 Truck

1 Answer

Code number


This code appears when there is a fuel related issue with the vehicle. This can be fuel pressue cause by a clogged fuel filter of a failing fuel pump. In some cases it can also be a clogged return line or failing fuel pressure regulator. In most vehicles that have a secondary fuel delivery system, the second or high pressure pump has failed and will need to be replaced

Dec 27, 2008 | 2004 Isuzu Rodeo

Not finding what you are looking for?

Open Questions:

See all 1995 Oldsmobile Cutlass Supreme Questions

1995 Oldsmobile Cutlass Supreme Logo

Related Topics:

62 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts

yadayada
yadayada

Level 3 Expert

78936 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...