Oldsmobile Questions and Answers List
Look through our Oldsmobile car repair questions and answers. Auto mechanics give free help,
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that only a dealership technician can answer.
2001 Silhouette Shudders
Misfiring at idle and driving, especially under load, but can occur at any time.
On hwy, van will hesitate /shudder / jerk; letting up on pedal and gently easing back onto it will correct the
problem for a bit. Also stepping on pedal and shifting to lower gear seems to minimize at least feeling the
shuddering. Especially noticeable cruise is on. Cruise and A/C on seem to make it worse. Within the last day
have noted this: high idle, between 900-1100 rpm.
Where Are The Transmission Speed Senors Located
I have replace almost all sensor and need a diagram of the transmission speed sensors and shift solenoids.
The location of the sensor depends on which ones you want to change.
There are a few shift solenoids and an input and output speed sensor. I will send a diagram in a moment.
Referencing the diagram I will send, the solenoids in the side cover require lowering the
frame/engine/transmission assembly nearly out of the car.
Security Light Flashes on My Oldsmobile Delta 88
This is a Pass-key II system. My battery had a bad cell so i replaced it. After that the cars security light
flashes and the car will not crank. I guess really my question would be how can i reset the security system.
Oldsmobile 88 Dies Won't Start
Yes, i have a 1998 Oldsmobile Delta 88 3800. Car was driving fine. All of a sudden stopped. Tried to crank it
but, won't start. Its turning over very good but will not start. Changed fuel pump. Can you confirm you have
Yes, I pushed the button on the rail and fuel came out. Checked for sparks at the spark plugs it was good.
Didn't check all the plugs.
Did the fuel spray hard or just sort of come out? Just because there is fuel there, does not mean the PSI is
Olds Aurora Secondary AIR Injection Code p0410
I replaced secondary air injection pump with new GM part
and 2 wire connector to fix a GM P0410 code check engine light is still on after
being cleared. Wondering if there is some fuse or wire...
My 1996 Cutlass Supreme wont Start
I drove my car about 30 miles and parked it. Within 5 minutes I went to start it up
and it won't start! It won't even turn over AFTER charging the battery. I tried to...
Leaking Coolant On 3400
I replaced the intake manifold gaskets but i still have the milkshake
antifreeze in the oil. See my picture and video of the rocker arms
Check Engine Light Code P1635 Volt Reference Problem
Replaced IAC and idle no longer raced but still was too high. MAF code for reference voltage. Back probed
sensor and found 4.2 V at the MAF. Disconnected MAF and reference pin was at 5V. Replaced MAF, code
cleared. Idle still erratic. Code set for Reference A voltage high. Back probed TP, Fuel Tank Pressure
Sensor, MAP, and EGR and found 5V reference either connected or disconnected. Noticed that upon key
on, Reference A will go to 6.2V. Took fuel pump out of the circuit and Reference A stays at 5V with key on.
Jumping in the fuel pump causes the Reference A voltage to go to 6.2V with or without the sensors
connected. All grounds have been checked good and tight. Any ideas of what next? I can't imagine a
voltage regulator in the PCM failing in such a way to cause this behavior, but I'm at a loss as to what's
causing it. Maybe a back EMF on the ground from the fuel pump? In any case, any help/insight would be
Replace Engine Now Won't Start
I put a 3.4L engine from a Chevy Impala in my Olds Alero now it does
not start. It cranks but won't run. Could it be the PCM?
Aurora AC Blows Warm After Car Sitting
My car has been sitting for a long time, and now the A/C blows warm. I
1995 Olds Aurora 4.0 Oveheats
GM dealer replaced water pump, later replaced by-pass hoses beyond pump.
Question: Engine was losing water and noticed leaks. Repairs were done and re-done. After repairs engine
temp was way to hot. Bottom radiator hose burst. Replaced hose, still running hot. Replaced thermostat, still
running hot. Could not get to a repair shop, running hot, mechanic said to bleed air from block. Where and
how? Tried threaded cap where radiator flush goes. I don't think this is right.
1996 Oldsmobile Aurora coolant fan circuit
Numerous electrical issues, engine harness at firewall- replaced entire harness, corrected most other
issues. work Checked fuses, No 2 and no 3 cooling fan relays.
With ohm meter checked control circuit wire for these 2 relays back to the pcm. Checked engine operating
temperature according to pcm via obd scan port, above perceived fan cut in. Appears pcm is not signaling
relays. According to wiring diagrams pcm should ground the control circuit in relay at cut-in and is not doing
so. Wire back to pcm is inactive according to ohm meter. Can not locate #1 cooling fan relay
(other 2 under hood at rt front) to perform same checks on it.
2000 Oldsmobile Intrigue DTC p0137 oxygen sensor
Check engine light codes P0137. Crank sensor replaced approx 20,000 mile previously.
Question: Code reader gives P0137, what do I check next?
I have been warned not to jump to replace 02 sensor because it could be something else. I have the normal
set of tools such and a DVM.
This code is for low voltage on 02 sensor #2, post catalytic converter. Several things can cause this condition.
Oldsmobile Alero misfire no power
The vehicle was just in a front corner collision. Changed spark plugs.
Question: I just had a collision in the front driver side corner of my vehicle, everything is pretty much
cosmetic, but after the collision the car started idling funny, and lacks power when i push the gas
and is really hard to start in the mornings.
Went to Autozone and the guy said it was a mis fire code, and to change my spark plugs and it
would fix it, i did, and it did nothing. Is there a sensor or something that could make the car act this
way? That could have possibly been messed up in the wreck, thank you so much.
2001 Oldsmobile Aurora coolant sensor location
I have an Oldsmobile Aurora 3.5L and it has had the light on for fluid level low , and has been worked on for
this issue before. The fan was blowing and it was over heating so they fixed that. It was fine until tonight. The
car has that light on, the car is over heating when i drive, when i am idle it goes back down, which its normally
the other way around. Then my car acted like it wouldnt start , but it did and i was driving. I got home and had
my dad put coolant in it, then i tried starting my car three times and it wouldn't start. The fourth time it started
but barley. WHAT CAN I DO? I NEED MY CAR?
What is wrong with it?
1995 olds cutlass supreme 3.1
overheating.ENGINE RECENTLY STARTED TO OVERHEAT. I ADDED ABOUT
A LITRE OF WATER DIRECTLY INTO THE RADIATOR. I WAITED APPROXIMATELY 20 MINUTES,
THEN I TOOK THE CAR FOR A RIDE. THE TEMP GAUGE STAYED WITHIN NORMAL LIMITS, UNTIL
I STOPPED. THE TEMP GAUGE CLIMBED INTO THE RED ZONE WHEN I LET IT IDLE. COULD THIS
PROBLEM BE THE WATER PUMP OR THERMOSTAT? BY THE WAY, WHERE IS THE
THERMOSTAT LOCATED ON THIS ENGINE? 3.1 LITRE ANY HELP WOULD BE GREATLY
Alero 2004 service vehicle light on dash and no lights at night.
Aurora overheats after replacing radiator
Replaced radiator, thermostat, water pump, reservoir cap, and flushed system. Ever since i
replaced everything above the car still overheats. When the car is running hot the coolant runs out
of the reservoir tank. At times when hot cold air blows out of the vents before turning hot. If been
told that it is possibly a bad gauge or bad head. Please help.
2001 Oldsmobile Aurora a/c blows warm
A/C recharged, low pressure side is cold to the touch. But only blows warm air in passenger compartment.
Gauge cycles up in to the alert area then returns to top of charged area.
Question: What needs to be checked next? Car has been setting for about 5 months. Previous owner said it
has been checked and their are no leaks. You can hear pump cycle when fuse is pulled and replaced.
2002 Olds Alero wont start
I came home from work and my car was working fine when i turned it off i forgot to switch it to park and after i turned
it off i then switched it to park. Then a few minutes later the car wont start and the engine wont even cranks over.
I thought it was going to be the battery but all of the electrical stuff works. When i turn the key everything is off but
the security light, once i let go off the key all the lights come on including the radio. You cant here a thing when you
try to start it, so i wonder if theres an engine kill or something. Thanks and please write back as soon as you can.
2002 Alero has no power to windows
Question: Occasionally when starting the car, the lights, all dash components, A/C, radio, power windows
do not work. The only thing that works is power door locks. The engine runs fine during this. I have to
shut the car off and restart several times for everything to start working again. What's up?
My 1997 Bravada gas gauge needle jumps, not accurate.
Oldsmobile Alero brake light problem
2001 Oldsmobile Alero Service Vehicle Soon.
Question: Why does my left and right brake lights don't work but the middle brake light does?
There doesn't appear to be any blown bulbs or fuses.service vehicle soon light on dash.
Intrique MAF Sensor Code
Replaced intake and cylinder head gaskets, and sensor. Check engine light is
on car with airflow code. Has rough idle and bogs worn when hitting the gas.
P0717 Transmission Input Speed Sensor
I had the computer codes in my car scanned and got a trans code. What can i do to
repair this problem. Shifting is kind of sluggish and has no power when accelerate.
Oldsmobile Achieva Security Light
Have problems with the gauges and the theft security system on my
Oldsmobile Achieva. Had a mechanic replace the dash cluster but
now check engine light is on. How to clear codes.
Oldsmobile Alero Truck
The trunk on my car will not open. Is there a way to get into it by
taking out the back seat or do I need a locksmith?
Timing Belt Jumped
Will the 3.4L DOHC engine hit the valves and bend them if the timing belt
is shredded and jumped? How can i check this?
Check Engine Light And Runs Rough
Replaced Intake Manifold Gasket replaced a few weeks ago.
Question: Check engine light came on and car began to run rough after I had the intake manifold replaced on it. Was
told by another mechanic that vacuum hoses were broken and one needed repaired. My question is, could this be
from the intake manifold gasket being installed wrong?
It is possible that the job was done incorrectly. To replace the intake manifold gaskets, basically the entire top of the
engine has to come off. I have also seen the incorrect gaskets installed. This causes several different problems. That
job includes removal of many vacuum lines and hoses. It is very possible the mechanic broke one or more, especially
it the car has a lot of miles on it. The hoses and lines would be quite brittle and break easily.
1996 Cutlass Supreme Coolant Temp Reads Hot
I replaced the coolant temperature sensor on my engine after it was replaced, but it still always reads
hot. What is wrong with my car? I think i need to test the wiring and the computer grounds but not
sure how to do that. A schematic and meter i need to chek out my car and diagnose it the right way.
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