Question about 1994 Oldsmobile Cutlass Supreme

1 Answer

I have a 1994 olds cutlass supreme 3.4 dohc. I have a master mechanic stumped on what is wrong with it. It revs up and down while in idle until it finally dies. Ive had ALOT of work done to it by process of elimination (i.e. Mass Air Flow Sensor, Throttle position sensor, EGR, Altenator, Battery, Starter, Checked for any vaccuum leaks, basically the car has been a money pitt!) So anyway, Im tired of keeping the brakes and gas on while at a stop light, I go through alot of brake pads. Is it possible that the ems needs to be replaced?

Posted by on

Ad

1 Answer

  • 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.

    Genius:

    An expert who has answered 1,000 questions.

  • Oldsmobile Master
  • 1,130 Answers

Has the ECM been scanned? Read the live readings from the sensors to see if u have any direction of the problem. Maybe even diagnostic codes. Coolant sensors are known for this issue too. Take an emissions reading & read the emissions. Good Luck

Posted on May 06, 2017

Ad

6 Suggested Answers

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

Ad
  • 321 Answers

SOURCE: 1995 cutlass supreme transmission

It physically will fit and bolt up,but there are many different ratio,and drive and driven sprocket tooth counts,different final drive ratios,all monitored by the computer with electronic speed sensors.If the trans from the 95 has a different ratio than the 93,the computer will set gear ratio error codes,and possibly put the trans in a failsafe mode,stuck in 2nd or 3rd gear.On the transmission case,down by where the passenger side axle would go in,is a thin metallic tag,maybe 2"x 3",and it has bar codes,and also a series of numbers and letters.The numbers and letters,large cap,are the final drive gear ratio code.They should match on the two transmissions in question.

Posted on Jul 31, 2008

  • 1118 Answers

SOURCE: fuel pump for 1995 olds cutlass supreme

No you will have to drop tank to access fuel pump.

Posted on Feb 06, 2009

  • 1201 Answers

SOURCE: Torque Settings for 3.4L DOHC Intake Manifold and Plenum

10 ft lbs.

Posted on Mar 16, 2009

c17hydro
  • 2984 Answers

SOURCE: firing order

Here ya go!

198243f.gif

Posted on Mar 25, 2009

gabndan2
  • 35 Answers

SOURCE: high rpms in park, too low in drive

sounds like ecm sensor problems.does check engine light come on at all?you may be able to get a code reader at autozone to retrieve computer stored codes, this would more than likely lead you in the right direction.some shops will do a computer check cheap if you are unable to perform this task.however the code readers come with instructions and are user friendly;-)

Posted on May 31, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Location for map sensor on a 1994 oldsmobile cutlass supreme 3.4 DOHC?


It's mounted in the right rear notch of the air intake by the fire wall or on the fire wall in that general location. with a vacuum line attached. That is standing in front of the car at the rear top edge of the manifold. Look it up on parts geek you can look at the enlarged picture to see what yo are looking for.

Jul 28, 2016 | 1994 Oldsmobile Cutlass Supreme

1 Answer

My car idles at 2000 to 2500 rpms


try using a scan tool to reset the ECM as without a viable battery for so long, the CPU program is probably corrupted

May 22, 2016 | Cars & Trucks

1 Answer

Gauge indicator light on. 1994 olds cutlass supreme


launched it and this is going to give u an idea whats is happening .cutlass supreme are very easy to understand ..sometimes is a real failure or sometimeis a wrong action of your driving and ecu detected it as a fail.. be more specific please

Sep 15, 2014 | 1994 Oldsmobile Cutlass Supreme

1 Answer

WHAT TYPE OF MOTOR OIL DO I USE AND HOW MANY QUARTS FOR 1993 OLDS CUTLASS SUPREME 3.4L


1993 OLDSMOBILE CUTLASS 3.4L 6-cyl Engine Code [X] DOHC

5W30 for all temperatures, 10W30 for above 0*F.

Capacity is 5 qts. without filter change. Add extra oil when replacing filter.
I suggest adding in increments of 1/4 qt. (4oz.)at a time until "full" is indicated on the dipstick.

Sep 30, 2010 | 1993 Oldsmobile Cutlass Supreme

1 Answer

My 90 olds cutlass supreme 3.1 automatic starts and runs until it warms up.reving the motor and letting it return to idle a few times,the idle gets ruff then dies and will not start again until it cools...


you most likely have a injector breaking down which is causing the quad driver in the computer which control the injector pulse to shut down .When a injector resistance is to low this will happen the correct resistance in ohms is 12.4 per each injector .This was a very common problem with 88 to 97 gm cars.have this zcheck at a reliable shop :)

Sep 29, 2009 | 1990 Oldsmobile Cutlass Supreme Conv

1 Answer

94 Olds Cutlass Supreme driving after warm trans free wheels until you pull over put in park and shut car off. Start car put in gear and drive away untill it does this again. Seems like a sticking pressure...


i bet u hav as many miles on dat cars as a trip to the moon-the trans is old in alot of places-varnish on parts from heat etc-u can get troubleshootin lit in library sec629 chiltons or haynes in discount auto

Aug 18, 2009 | 1994 Oldsmobile Cutlass Supreme

2 Answers

How much of a problem is it to change the timing belt on a '94 Cutlass Supreme 3.4L? I know the alternator is a pain.


this unit is not equipped with a timing belt. it has a timing chain. to replace the timing chain is a major undertaking. if you do not have mechanical experience do not attempt . take to a highly reccomended shop.

Aug 18, 2009 | 1994 Oldsmobile Cutlass Supreme

2 Answers

When i start up my 93 olds cutlass supreme it idles very high


Sticking throttle linkage, or faulty idle control system.

Jun 04, 2009 | 1993 Oldsmobile Cutlass Supreme

1 Answer

Map Sensor Location


back of the intake please leave feed back thanks

Sep 18, 2008 | 1994 Oldsmobile Cutlass Supreme

Not finding what you are looking for?
1994 Oldsmobile Cutlass Supreme Logo

Related Topics:

56 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8567 Answers

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

Answer questions

Manuals & User Guides

Loading...