20 Most Recent 1998 Chevrolet Monte Carlo Questions & Answers

Hi Carl, When it shuts down do the ignition and warning lights come onto the dash or is the dash blacked out? What has caused you to think its the alternator and battery? When it cuts, does it start right up again, or do you have a problem to get the starter motor to turn the engine? Have you checked the battery connections. Have you checked anything else for faulty connections? Regards John

start the car then remove the negative battery cable if the car still runs them your alternator is working properly and you need a battery. I have also gotten bad rebuilt alternators from on several occasions for this type of car and had to put on new AC delco ones but they are a little more expensive.

I would have the DIS module checked, most all national parts store chains can check them for free. If the DIS checks good, I would have the catalytic converter checked.

If you're finding it difficult to service/repair your car, get one of those online manuals. You'll not have to wait for others to answer, or rely on mechanics and all. Plus i know a website that sells very very good manuals online, without expiry i.e. for lifetime. www.reliable-store.com

See diagram below

if the gas was low, you might have a leek when there is not enough gas in the system , the ac compressor will not ingage

This is a dead ringer symptom of a vacuum leak

Have it checked for DTC'S - diagnostic trouble code's . I suspect the problem is with the tdm module or the ignition switch ???? Assuming will only get you into trouble . If the PCM - engine computer does not see the right coded meassage from the TDM it won't turn on the fuel injectors or it will cut them off in two seconds . . Buick Security Systems 1998 Chevy is the same . Ignition Key With Wrong Resistor Pellet Code is Used To Start Engine The theft deterrent module performs one of the two following actions when you attempt to start the vehicle with a wrong ignition key: • There are 15 PASS-Key® II resistance ranges. The PASS-Key® II resistance may be one of the 14 valid but incorrect PASS-Key® II resistance ranges. The theft deterrent module will perform the following actions when you attempt to start the vehicle (if the condition is present during an engine start attempt or for 1 second any time after the engine has started): • Turns on the SECURITY indicator • Sends a password to the PCM through the fuel enable signal circuit • The password disables fuel delivery to the engine. • Disables the theft deterrent relay, which disables the starter circuit • Disables sampling of the PASS-Key® II resistance for 3 minutes • The 3 minute time period is called the shut-down period. • Disconnecting the battery will not clear the timer sequence. The timer sequence will resume when battery power is restored. • Inserting the proper key during the vehicle shut-down period will not start the engine. The engine will not start until the shut-down period has elapsed. • After the shut-down period, the engine will start if the correct ignition key resistor pellet is used. • The PASS-Key® II resistance may be correct and allow the engine to start. Later during the same ignition cycle, the PASS-Key® II resistance may be one of the 14 valid but incorrect resistance ranges. The theft deterrent module will perform the following actions: • Enters the fail-enable mode • Turns ON the SECURITY indicator • Sends a password to the PCM through the fuel enable signal circuit when more attempts to start the engine occur • The password allows the fuel enable circuit to deliver fuel to the engine. • Enables the theft deterrent relay, which also enables the starter circuit. Ignition Key With Correct Resistor Pellet Code is Used To Start Engine The theft deterrent module performs the following actions when the correct ignition key is used in order to start the vehicle: • Enables the theft deterrent relay. The theft deterrent relay enables the starter unit. • Sends a password to the Powertrain Control Module (PCM) through the fuel enable signal circuit. As a result, the PCM allows fuel delivery to the engine. By pass theft system . GM VATS Key Resistor Key Security Bypass

Dense white smoke usually means coolant is getting into the combustion chambers. If the engine then quit and will not easily turn over (as you described 'battery is dead'), you may have one or more cylinders hydraulically locked. There is coolant in the cylinder and the piston cannot come to the top on the compression stroke because water prevents it; air is compressible, water is not. Remove the spark plugs one by one and see if they are wet or very clean (steam cleaned). If so, you need to find why coolant is getting into that/those cylinders. Bad head gasket, cracked head, cracked block.

Instrument panel. Speedo, gas , and all the gauges if front of the steering wheel.

It's not called a starter relay , it's theft deterrent relay and it's controlled by the theft deterrent module. When the ignition switch is moved to the START position (and the theft deterrent module recognizes the key code), battery voltage is applied to starter solenoid (through the theft deterrent relay). Both solenoid windings are energized. The circuit through the pull-in winding is completed to ground through the starter motor. The windings work together magnetically to pull in and hold the plunger, which moves the shift lever. This action causes the starter drive assembly to rotate as it engages with the flywheel ring gear on the engine. At the same time, the plunger closes the solenoid switch contacts in the starter solenoid. Full battery voltage is applied directly to the starter motor, which cranks the engine. Theft Deterrent Relay Behind RH side of I/P, above I/P compartment

If you are sure every thing is working the way it should you can try something I do for gas cap loose. light after I put a new cap on.. I remove the negative cable off of the battery for one to two hours and let the computer reset itself. It seems to be working but I have to reprogram my radio after but I have no problem with that. Make sure your fluid is up and you have no leaks.

GOOGLE

Daniel, I think, I would be worried as it could leave you stranded by de energizing ignition , giving a no start condition. Try your second set of keys to see if security resets. You can also google your vehicle and see if there is a security relearn procedure to get rid of light. Check the attached links,instruction and guides, Good luck "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info." Do It Yourself GM Security bypass https://ca.answers.yahoo.com/question/index?qid=20070627132141AA0iJe1

The alternator is not working.

The sensor is in the gas tank along with the fuel pump. If your fuel level is not reading correctly then that is probably the problem.

sounds like you have to much Freon in the system. Have you just recharged the system?

Here you go

Then you should take it to a ASE certified repair facility ! Where is your owners manual !

Inspect both door contact plungers...could be dirty. also check trunk catch...lubricate all with PB Blastor...