Question about 1984 Oldsmobile Cutlass

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My 84 olds cutlass is idling up and down and running a little rough, it is also having problems while driving it is ok but when stoppedn sometimes it bogs down. what is the proper rpm settings when in park and in gear. it has the 3.8 L V6 with 2 barrel carb(dual jet) i have new carb on cause choke(elec.) dosen't work

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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 1999 Olds Intrigue (3.5 L

crankcase sensor, located behind starter on 3.5

Posted on Nov 25, 2008

  • 1 Answer

SOURCE: 89 olds cutlass ciera bogging down when accelerating.

Working on Mom's car for three days now I've just about pulled all my hair out ! The dam thing would bog as i tried to accelerate over 700 RPM. We replaced the MAP,TPS,FUELPUMP,and i ohm-ed out everything under the hood, and then i found it!! The CRANK POSITION SENSOR had cracks around the base of the sensor and had oil seeping out.Check out pic.I hope this could be of some help...81f987d.jpg

Posted on Mar 09, 2009

emissionwiz
  • 75117 Answers

SOURCE: 1993 olds cutlass supreme 3.1 multi port loading up at idle

Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Apr 07, 2009

  • 59 Answers

SOURCE: Car idles rough, stalls - 1982 Oldsmobile Cutlass Supreme

check for black smoke at exhaust. stuck choke.... clean with carb. cleaner. could need adjusted. possible stuck float. no quick fix. diry fuel filter. replace.

Posted on Jun 19, 2009

localwonder
  • 6784 Answers

SOURCE: 1998 Oldsmobile Cutlass, While driving

Hi. This issue has several causes, but the oil light indicator is a strong sign of low pressure in the engine. This will cause the engine lubrication rate to drop, thus, producing a illuminated oil light, and erratic Oil pressure readings. The necessary actions are to have a manual oil pressure test ran on this engine, asap. When running a manual oil pressure test, you will discover if the true oil pressure is low, or normal. If the test proves that the oil pressure is, indeed, low, this will confirm that the Oil pump is suspect.

Now, if the true readings given during the manual oil pressure test are indicating that the pressure is normal, this will be the result of a failed sending unit(oil pressure switch). Although the oil pressure is suspect, this is not your only issue here. There seems to be a abnormal compression rate, present. This is causing the rough idle, and erratic RPMs. I recommend to administer a engine block compression test, as well. This test will discover if , indeed, there are issues within the cylinder heads, and block structure, such as a worn head gasket, cylinder wall issues, and cracked block. Normally, these issue will send signs, like white, or gray smoke out the tail pipe, or discolored oil. It will, also, promote erratic RPM ratings, and a rough idle. Have the oil pressure test, and engine block compression test ran, asap.

Once the test are administered, you will be able to isolate the actual problem areas, more accurately. Check the spark plug wire sets, and ignition assembly for faults, also.

Posted on Dec 19, 2009

Testimonial: "Great Feedback, Best yet!! I have other questions tho but it wont let me reply back to you. What kind of discolored oil? "

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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;-)

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Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

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