20 Most Recent 1999 Oldsmobile Alero - Page 2 Questions & Answers

Unscrew the old one , screw on the new one , replace electrical connector . nothing to it . Videos on youtube if you need pictures .You need to remove the plastic engine cover if there is one .

Its possibly a dirty,or bad connection on the traction sensor. Locate the sensor, inspect and clean. Dielectric ointment helps on the electrical plug before plugging back together. Brake clean,to clean plug,sensor.

You have a crack head or blown head gasket.

You will need to replace the multifunction switch. This will require removing the steering wheel as well as the column covers.

If it's been sitting for that long, maybe it needs FRESH gas in the fuel system,, or maybe some critters chewed up some wires under the hood..... Could be a few things

You can get a liquid dye to put in the system. You need a UV light to scan the system for the leak it will glow green

That won't help. If firing good other cylinders, then the module is good. It could be an injector problem. You need to check the spark on #1. Make sure it is sparking good, then look for air/fuel mixture problem-bad injector or something else in that cylinder affecting the air/fuel mixture so it doesn't fire good. Maybe a valve not sealing- need a compression test to check that.

KIND HARD TO GET A BRAKE LINE DIAGRAM.YOU HAVE TO A SALVAGE YARD LOOK FOR CARS WITH THE N BODY SAME YEARS AS YOUR CAR IF YOU HAVE A OLDS ALERO A 99 MODEL LOOK FOR BUICK SKYLARK , OLDS ACHIEVA AND GRAND AM, THE MALIBU AND OLDSMOBILE CUTLASS.LOOK AND FOLLOW THE BRAKE LINES ROUTING FROM MASTER CYLINDER TO UNDERNEATH THE CAR.BRAKES LINES HAVE TO BE AWAY HOT ENGINE EXHAUST MANIFOLD AND PIPES.BRAKES LINES HAVE TO BE AWAY FROM ENGINE OR DRIVE TRAIN THAT CREATES VIBRATIONS WHICH CAN CAUSE BRAKE LINES TO BREAK.BRAKE LINES HAS TO BE SECURE IN BRACKETS.WHEN YOU GO TO SALVAGE YARD LOOK AT CARS I LISTED ABOVE.SAME BODY STYLE TAKE NOTE DRAW DIAGRAM ROUGH DRAFT OF HOW BRAKES LINES ARE ROUTED AND SECURE IN BRAKETS.THAT WILL GIVE YOU A IDEA WHERE TO RUN NEW BRAKE LINES.

Then look at the clips on the window. The clips should be up at the bottom of the window. if one is lower, some one put them on that had a bad regulator. The clips are U/Y shaped and the window should be at the bottom of the U

As by heat only works some of the time , you mean it doesn't blow air out of the vent's . This means you probably have a problem with the blower motor or blower motor resistor or blower motor relay . Rear Window Defogger Inoperative

Exchange the rear defogger relay with a known good relay from the under hood junction block.
1. Turn the ignition switch to the ON position.
2. Press the rear defogger switch to the ON position.

Does the rear defogger grid warm? -- Yes Go to Step 2 NO Go to Step 3 2 Replace the faulty relay. Is the repair complete? Go to Defogger System Check -- 3

1. Use a fused jumper wire in order to backprobe between terminal A4 of underhood junction block connector C3 and ground.
2. Use a test lamp in order to backprobe between terminal C5 of underhood junction block connector C3 and ground.

Does the test lamp light? -- Go to Step 4 Go to Step 23 4

1. Use a test lamp in order to backprobe between terminal C5 of underhood junction block connector C3 and ground.
2. Press the rear defogger switch to the ON position.

Does the test lamp light? -- Go to Step 5 Go to Step 14

The security, antitheft or lock picture/icon is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterprets this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle. This link explains it pretty well. http://www.diy-gm-security.com/

try this link and see if they can help you Oldsmobile Owner Assistance

do it your self at least $300.00 if the heads is not warp.you cant really estimate until you remove the head or heads.if heads okay a good side garage not the dealership can do it for at least $800.00 the dealership will charge at least $2000.00.

No, that sounds like the water pump pulley. Loosen the 4 bolts with the serp. belt still on, then remove belt, and remove the pulley and the 4 bolts. Drain the coolant, and now you can remove and replace the water pump. It is not fixable, it must be replaced. Be sure and clean the mating surface of old gasket material and dirt, grease, etc. YouTube should have lots of videos on water pump replacement, maybe one for Aleros.