20 Most Recent 1993 Oldsmobile Cutlass Supreme - Page 7 Questions & Answers

Could be Electronic Ignition Module, Crankshaft Sensor, Powertrain Control Module, ECT.......

I had this problem when the locking mechanism rusted up. I had to go in through the bottom on the front side of the radiator to force the rotating lock open enough to get the hood to pop and then I could open it up completely. No real good way to do it that I can see beyond that...it was a pain, but I got.

leaf spring

I have a problem with my 1993 Oldsmobile Cutlass Supreme, my car starts and will run good for awhile and then it will quit and won't start up again, the engin will turn over real good with lots of power in the battery, but I just can't get to start, I have put a new fuel pump, filters, spark pluggs & wires, alternater, battery. and it still does the same thing can you help me.
daniel

Sounds like a faulty fuel regulator

You know you have two flashers in there. One for hazard and one for turn. They come on so we know this switch is good. steady is a bad flasher...only

All of the motors in these were V6s. Think of your engine block as the letter V, at the top of each side of the V are your cylinder heads. Sitting on top of the cylinder heads are the valve covers. The gaskets are located underneath the valve covers and are there to prevent the oil inside from leaking out. Since your car is front wheel drive your engine is mounted transverse. So one valve cover will be near the back of the engine compartment and the other will be toward the front. Hope this helps.

No adjustment is required during routine maintenance. Tampering with the minimum idle speed adjustment is highly discouraged and may result inPremature failure of the IAC valve.

Engine idle speeds are controlled by the ECM through the IAC valve mounted on the throttle body. The ECM sends voltage pulses to the IAC motor windings causing the IAC motor shaft and pintle to move in or out a given distance (number of steps) for each pulse (called counts). The movement of the pintle controls the airflow around the throttle plate, which in turn, controls engine idle speed. IAC valve pintle position counts can be observed using a scan tool. Zero (0) counts correspond to a fully closed passage, while 140 counts or more correspond to full flow.

Idle speed can be categorized in 2 ways: actual (controlled) idle speed and minimum idle speed. Controlled idle speed is obtained by the ECM positioning the IAC valve pintle. Resulting idle speed is determined by total air flow (IAC passage + PCV + throttle valve + calibrated vacuum leaks). Controlled idle speed is specified at normal operating conditions, which consists of engine coolant at normal operating temperature, air conditioning compressor OFF, manual transmission in Neutral or automatic transmission in D .



Fig. 1: Idle Air Control (IAC) valve wiring and terminal identification - 1988-93 vehicles (click for zoom)

1. Disengage the IAC electrical connector.
   
2. Using an ohmmeter, measure the resistance between IAC terminals A and B . Next measure the resistance between terminals C and D .
   
3. Verify that the resistance between both sets of IAC terminals is 40-80 ohms. If the resistance is not as specified, the IAC may be faulty.
   
4. Measure the resistance between IAC terminals B and C . Next measure the resistance between terminals A and D .
   
5. Verify that the resistance between both sets of IAC terminals is infinite. If the resistance is not infinite, the IAC may be faulty.
   
6. Also, with a small mirror, inspect IAC air inlet passage and pintle for debris. Clean as necessary, as this can cause IAC malfunction.

Hope helps.

Check the oil pressure switch as it's next to the oil filter. You describe a car that hasn't had the oil changed often enough as the dirty oil is eating things up The switch the oil filter and the engine. The oil filter can leak too. These cars seldom leak if the oils is changed regularly (4 times a years or at least every 5000 miles.

you idle air control could be going out,this is a electric valve that controls your idle speed,it is not that hard to replace,just a couple screws and a electric connection plug..check around at the auto parts store and get a good price...this part should cost about $35-70 so check around because it is elecrtical it is not a returnable part. The part is located on your air intake just past your throttle plate.it is usually very easy to get to. Take you about 5 min. to replace it youself. Your car is at the right age for this part to be going out. I would change it out if i were you. As far as when you push on the gas that could be caused by your thottle position sensor,also a part that will be going out soon,it acts like a accelerator pump, which could be causing you sputtering when you push on ths gas petal..I would look at replacing both these parts,they are easy to replace and will keep you from getting stranded and at the mercy of some of the Auto Mechanic Ripoffs.......

If it doesn't turn over at all, it could be the crankshaft or camshaft sensor, is your security light staying on? If so, it could be your security system, passlock was installed in many gm's and caused alot of problems. Have your starter checked at autozone or advance, they check them for free. If it is the security system youtube shows how to bypass the passlock system. Also, check to see if your car is getting fuel. Hope this helps.

if you follow the upper radiator hose to where it connects to the engine. drain anti freeze a
little(to get below hose,remove hose from thermostat housing,remove 2 bolts & remove housing
the thermostat will pull out.make sure you install the same way(spring end toward engine)
if new thermo has a small hole in it(some do)make sure its up 12 o'clock position.
reconnect & refill system.there are air bleeders in system 1 at thermo housing & possibly
1 around the water pump.after car is running you need to open bleeder to allow trapped
air out.CAR WILL OVER HEAT IF ITS NOT BLED
top off system after bleeding

good luck

Visit Autozone.com and look at their online repair manuals. Most computers are in either the driver or passenger kick panels under the dash just in front of the door, in the engine bay, under one of the front seats, or behind/under the radio in the dash.

u can pry the window frame open a little slide a block to keep it open and slip anything u can hook the inside door handle to open door some parts stores sell these

This sounds more like the thermostat is not opening as it should, instead of an ECM problem.

With the indications you state - goes down when heater activated - goes down when moving, that is what I would have checked first, not the cooling fan!

Yes, the anti theft system will cause it not to start. If they messes up that little black chip on your key when they took it. That could cause a NO START

http://vatspasslockpasskeysecurityhelp.yolasite.com/