Question about 1987 Oldsmobile Cutlass Supreme

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Need wiring diagram for 87 cutlass supreme (charging system)

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  • Greg Bernett
    Greg Bernett May 11, 2010

    What size of motor?



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Posted on Jan 02, 2017

  • 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

  • 105 Answers

SOURCE: Where can I find a spark plug wiring diagram for 1997 3.1l engine

Normally the firing order will be stamped on the top of the intake manifold also the number one plug will be the front one on the drivers side of the car. On the top of the distributor cap you should see a number one that is where the number one plug wire goes follow the firing order on the manifold and go clock wise on the distributor cap

Posted on Mar 18, 2009

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SOURCE: 91 oldsmobile cutlass supreme 2.3 quad 4 fuel injector diagram


Posted on May 01, 2009

  • 1 Answer

SOURCE: I need to replace some dash lights in '87 cutlass supreme

The other screws are behind the woodgrain panels on either side of the speedometer cluster. The panels are held in place with metal clips and are difficult to pry loose. I did it by using a small plastic wedge that I found in a junk pile and once I had a place to start, I worked each corner of both panels until pried out. These panels could break, so go slow and be patient.

Posted on May 03, 2009

  • 1 Answer

SOURCE: My Cutlass Supreme S need diagram on installing starter.

I have a 3.4L engine and my starter is wedged in between the frame, oil filter, and then covered by A/C unit tubing headed to the A/C compressor.

Before I got started with the starter I personally had to remove the engine brace on the front of the car holding the engine in place to the frame (very easy) and laid it back on the engine. Then I removed the fans on my radiator and bracing sitting atop the radiator to help clear the way. I personally also had to remove some A/C tubing running to the A/C compressor of the car in order to remove the starter which was still running into some hose right next to the oil filter. So the A/C will have to be recharged afterwards.

Remove the little plastic shield covering the flywheel and some of the starter. Remove the 3 bolts holding the starter. Slowly work the starter out of its recessed hole being careful not to pull to hard on the hose right next to the oil filter.

Place the new guy in there and reinstall all components. Only this time you will need to recharge your A/C when you are done.

First remove the plastic shield covering the flywheel.

Posted on Aug 26, 2009

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