Top 20 1999 Oldsmobile Silhouette Questions & Answers

That sounds to me like you have a bad ignition key switch. for it to read the chip in the key the switch needs to be able to recognize it. Hope this helps getting you going again :o) Jesus loves you John 3:16-17 (KJV)

Best thing go to www.reliable-store.com they have got books on every vehicle and also how to service/repair it, service/repair/owner's/maintenance manual with parts info, fuse box, gear box, PCV, torque specs,coiling, wiring diagrams, electrical diagrams, fuse diagrams, error codes, etc everything Worth it

Thermostat stuck open .

Remove battery cables and clean battery terminals, reattach cable and tighten.

210-230 degrees usually .

There is no simple solution for this problem. A mechanic will have to see the linkage and cable to diagnose the problem and affect repairs. Sorry.

First run a fault code test on the engine control module to make sure the problem is not in the electronics, if all is ok then the transmission is starting to fail.

It could be, best thing to do is start your car and with radio on, but volume on low, listen to the passenger rear speaker for the noise you are talking about.

At idle? At 60 mph? In drive or park?

Hi Carol,here's a Autozone repair guide on replacing your brake booster. Repair Guides Brake Operating System Power Brake Booster AutoZone com Here's a link to a new one. Brake Power Booster Hydraulic Brake Fluid DOT 3.OE Part Number/Spec: GM P/N 12377967 Spec 9986121.

Crankshaft position sensor !

Most likely throttle position sensor is defective.

If it is not starting you need to check the fuel delivery system, along with the ignition system for spark. The exhaust system or pipe has nothing to do with vehicle engine startup.

under the heads on the block

Idle speed on fuel injected engines is controlled by the idle air motor. Yours may be dirty, EGR dirty, vacuum leaks, MAF dirty, tune up issues. DON'T turn the screw which controls the throttle blade closed position, but do check that the blade is clean and not sticking open, as this prevents the IAC from doing its job. Bad coolant temp sensor or O2 sensor can affect idle quality also.

unscrew it and screw in new one

I am going to assume that this is a 3.4L and that all the sensors were transferred to the new engine from the old engine and that the old engine ran before replacing it an that all the connecton are good. Now with that said, There are three thing required to make an engine run. 1-proper air/fuel ratio. proper fuel delivery and pressure. 2-proper cylinder compression. 3-proper ignition spark, integrity and timing. Once you have figured out what is missing , then it is time to diagnose what is at fault. Make sure you have fuel delivery and at proper pressure. Determine if the ignition coils are firing. I would assume that you are gonna find there is something lacking within thses to steps. If no spark, you will need to verify the all the connections are good and connected at the ignition module (under coil packs). Make sure all ground connections are good. I can only assume that the compression on the engine is good from this standpoint, because you said it is a "new" engine. Hope some of this will help.

They should be mounted inside the fenders or behind the bumper cover.

Broken ground wire for the turn signal/blinker lights.

Must replace both hatch struts..."Mighty Arm" on line great...snap on snap off...also available at most parts store for a few dollars more...