Top 20 2000 Oldsmobile Alero Questions & Answers

Question edited for clarity, year make model in that order and first. Question moved to category. All in the link, videos and images. https://www.google.com/search?q=2000+oldsmobile+alero+temperature+sensor+location ...

busted vaccum diaferam or a loose vacuum line.

Located on the very bottom of the radiator is a Large hose and the Drain Valve is there, open the valve, drain all the fluid, open the top of the radiator, hold a running water hose to fill the radiator, start the car find the balance of water flow, in the water hose and the drain. When the engine is warm about 3-5 minutes. It will then start cycling through the engine you may need to increase water hose flow now to keep the radiator full. Flush for 2-3 minutes or until crisp clear water is draining from the Drain valve. Turn off the car let all water drain completely. Then fill with Coolant. Water mix of 50%/50% coolants are suggested for summer time operation. GoodLuck!!!

4 cyl? Look slightly below/beside the oil filter.

Which engine does it have ? 3.4 or 2.4 l

try jiggling the key. If that helps, replace the IGN switch. Very common failure

The fact the heater no longer produces hot air might be significant or coincidence. Sometimes a temperature gauge fault can produce the false belief an engine is overheating. If it overheated while the coolant was leaking it is possible it loosened enough sludge to block the radiator and/or heater matrix. It could also have caused a 17 years old head gasket to begin failing. Below are some notes I prepared for my customers... Cylinder Head Gaskets A few explanatory notes... The cylinder head gasket is a complex seal within the engine intended to keep cooling water, engine oil and the combustion process separate. The life of a cylinder head gasket is very stressful and deterioration begins the moment a new engine is started for the first time and continues at a rate depending on the usage and the design of the engine. It is almost inevitable that the cylinder head gasket will fail at sometime in the life of the engine and replacement will be needed. Occasionally a complete head gasket failure is sudden (and disastrous for the engine as serious overheating can take place) but mostly symptoms or clues indicating the continuing deterioration of the gasket is resulting in it failing to do its job properly are present for a long time before complete failure occurs... When two, or more, of the following symptoms are present most or all of the time it is time to seek help and advice: -

1. Residual pressure in a cold cooling system.
2. Pressure in cooling system immediately or very soon after start-up (while still cold).
3. Abnormal amount of bubbles seen rising through coolant expansion bottle (if it is clear plastic) while the engine is running.
4. Misfire occurring regularly on start-up that clears rapidly (cold or just-warm engine).
5. Steady coolant loss but no external leaks.
6. Abnormally large amounts of vapour from the tailpipe continuing longer than normal and might be accompanied by a spray of water. Some vapour and some droplets of water are normal, especially in cooler weather.
7. Unusual or erratic heater operation (warm/cold not electric fan) often accompanied by unusual temperature gauge indications.
8. Engine oil level does not fall in spite of usage or even seems to be getting higher: oil might also have a lighter coloured or creamy appearance than is usual.
9. Oily residue floating on top of coolant.
10. Emulsion present under oil filler cap and/or dipstick. Some emulsion (or mayonnaise) is usual for many engines under some circumstances.

Head gasket replacement is not a routine operation and it usually is not possible to predict the amount of work required before dismantling has taken place. For reasons of long term economy and reliability it might also be advisable to have other work carried out at the same time, such as timing belt replacement, valve stem oil seal replacement, etc.

The instrument cluster is the problem , buy a used one from a auto salvage yard for $20 buck's an see if it work's then . Then send your's to a Automotive electronics remanufacturing company . Reman Auto Electronics Auto ECM Electronics

don't spend money guessing have the fault codes read first then fix what is indicated could be an EVAP problem not venting the tank could be a camshaft position sensor could e a failed cat converter locking the exhaust

check the idle controller and your timing belt

First try removing the air using a vacuum pump. If the air comes back, check the sealing rings on each hose. If they're overtightened, the o ring will crack

https://www.obd-codes.com/p0410 Look on youtube . P0410 Secondary Air injection System Troubleshooting

note turn car off put key to run so fan will come back on it will cool down faster pop hood to let heat release. check transmission fluid low fluid can cause it to over heat

Possibly a broken wheel bearing. Have a mechanic check it out.

Key barrel has worn out. I would replace it. I can probably find the procedure if you want to do it yourself. Just let me know.

Dead ringer sypmtom of a bad wheel speed sensor which is buried inside the wheel bearing. Very common on these cars.

Coolant leaks on the path of least resistance, in this case it's the cap to the coolant reservoir. Overheating is caused by a few things: 1. Bad water pump 2. Clogged thermostat 3. Bad fans May want to check a few of these components.

Its your wheel bearing... replace it ASAP! You may have noticed a hum while driving over 35 that changes when you rock the steering back and forth. A while after this the lights come on as the sensor is part of the hub assembly.

First check for error codes (DTCs) to see if you can determine the problem.

Pull it out an see if it's burnt . The fuse is located in the right hand instrument panel fuse box . HVAC BLOWER fuse 20amp . There is also a blower motor relay in the under hood fuse box . RH IP Junction Block (fuse box) In the right side of the passenger compartment , open the right door ,at the end of the I/P pull the plastic cover to see fuse box