Need Help ASAP! Car wont start!
05-14-2008, 10:00 AM
#21
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i was gonna say, first off just because the lgihts work doesnt mean the battery has enough juice to start the motor.
secondly, if the security system (factory) is activated you need to lock your car with the key fob and leave it locked for 30 mins, then unlock with the fob and try.
lastly, if youve got an aftermarket alarm its likely that.
these are all points that have been brought up, i just wanted to summarize.
secondly, if the security system (factory) is activated you need to lock your car with the key fob and leave it locked for 30 mins, then unlock with the fob and try.
lastly, if youve got an aftermarket alarm its likely that.
these are all points that have been brought up, i just wanted to summarize.
05-14-2008, 10:02 AM
#22
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i was gonna say, first off just because the lgihts work doesnt mean the battery has enough juice to start the motor.
secondly, if the security system (factory) is activated you need to lock your car with the key fob and leave it locked for 30 mins, then unlock with the fob and try.
lastly, if youve got an aftermarket alarm its likely that.
these are all points that have been brought up, i just wanted to summarize.
secondly, if the security system (factory) is activated you need to lock your car with the key fob and leave it locked for 30 mins, then unlock with the fob and try.
lastly, if youve got an aftermarket alarm its likely that.
these are all points that have been brought up, i just wanted to summarize.
05-14-2008, 12:50 PM
#27
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sure. I'll just get it towedf to CMS. I just payed 100.00 for towing it 17 mi on a flat bed. My road side ***. covered half of it. I'm going to try and doing the vats bypass with the resistor.
http://www.ls1.com/forums/showthread.php?t=61262&page=2
http://www.ls1.com/forums/showthread.php?t=61262&page=2
05-14-2008, 12:52 PM
#28
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sure. I'll just get it towedf to CMS. I just payed 100.00 for towing it 17 mi on a flat bed. My road side ***. covered half of it. I'm going to try and doing the vats bypass with the resistor.
http://www.ls1.com/forums/showthread.php?t=61262&page=2
http://www.ls1.com/forums/showthread.php?t=61262&page=2
05-14-2008, 12:53 PM
#29
sure. I'll just get it towedf to CMS. I just payed 100.00 for towing it 17 mi on a flat bed. My road side ***. covered half of it. I'm going to try and doing the vats bypass with the resistor.
http://www.ls1.com/forums/showthread.php?t=61262&page=2
http://www.ls1.com/forums/showthread.php?t=61262&page=2
05-14-2008, 01:46 PM
#33
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Vehicle Description: 2001 Pontiac Firebird Formula 5.7L
Mileage: 28660
Customer Concern:
Intermittent no start and no spark or injector pulse. No communication with the scanner or Malfunction Indicator Lamp (MIL) Key On Engine Off (KOEO). Reference voltage to the Camshaft Position Sensor (CMP) and Crankshaft Position (CKP) intermittently drops to about 8.4 volts. Intermittently dropping voltage to 8.5 volts at the Powertrain Control Module (PCM) Blue connector, Pink wire, pin 19.
Tests/Procedures:
1. When the problem happens check B+ at the PCM IGN fuse in the lower underhood fuse block.
2. Check the fuse for a poor connection.
3. If dropping voltage at the fuse recheck at the ignition switch back probed at pin C.
Potential Causes:
Connection
Wire
Ignition switch
** Confirmed Fix **
Ignition switch
Diagnostic Codes:
None
User Comments:
None
Category:
Engine Performance
Check Engine Light (MIL)
Ignition System Diagnosis
Scan Tool/ECU Communication
Mileage: 28660
Customer Concern:
Intermittent no start and no spark or injector pulse. No communication with the scanner or Malfunction Indicator Lamp (MIL) Key On Engine Off (KOEO). Reference voltage to the Camshaft Position Sensor (CMP) and Crankshaft Position (CKP) intermittently drops to about 8.4 volts. Intermittently dropping voltage to 8.5 volts at the Powertrain Control Module (PCM) Blue connector, Pink wire, pin 19.
Tests/Procedures:
1. When the problem happens check B+ at the PCM IGN fuse in the lower underhood fuse block.
2. Check the fuse for a poor connection.
3. If dropping voltage at the fuse recheck at the ignition switch back probed at pin C.
Potential Causes:
Connection
Wire
Ignition switch
** Confirmed Fix **
Ignition switch
Diagnostic Codes:
None
User Comments:
None
Category:
Engine Performance
Check Engine Light (MIL)
Ignition System Diagnosis
Scan Tool/ECU Communication
05-14-2008, 01:48 PM
#34
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2000 Chevrolet Camaro SS 5.7L
Mileage: 27000
Customer Concern:
No start, no spark. No voltage on the Pink wire to the coils. No voltage to the injector 1 and injector 2 fuses.
Tests/Procedures:
1. Check for engine RPM in scan data while cranking.
2. Check for fuel injector pulse when cranking.
3. Check voltage level to the ignition coils, Pink wire, while cranking. Should be over 10v while cranking.
4. Replace the ignition relay in the underhood fuse block.
Potential Causes:
** Confirmed Fix **
Ignition relay, underhood fuse block
Diagnostic Codes:
None
User Comments:
Close Comment(s)
Category:
Engine Performance
Starting
Mileage: 27000
Customer Concern:
No start, no spark. No voltage on the Pink wire to the coils. No voltage to the injector 1 and injector 2 fuses.
Tests/Procedures:
1. Check for engine RPM in scan data while cranking.
2. Check for fuel injector pulse when cranking.
3. Check voltage level to the ignition coils, Pink wire, while cranking. Should be over 10v while cranking.
4. Replace the ignition relay in the underhood fuse block.
Potential Causes:
** Confirmed Fix **
Ignition relay, underhood fuse block
Diagnostic Codes:
None
User Comments:
Close Comment(s)
Category:
Engine Performance
Starting
05-14-2008, 01:49 PM
#35
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2000 Pontiac Firebird Formula 5.7L
Mileage: 55568
Customer Concern:
Intermittently, the engine will not crank over.
Tests/Procedures:
1. Check the resistance of the key pellet and document it.
2. Disconnect the key cylinder wiring at the base of the column and install an ohmmeter across the terminals on the steering column side of the connector.
3. Insert the key and check for the same resistance value as documented in the previous key test. If the resistance values do no match, there is a problem in the key cylinder or the wiring running through the steering column.
Potential Causes:
** Confirmed Fix **
Key cylinder and related wiring in the column.
Tech Tips:
It is important to rotate the key to crank when checking the resistance at the base of the column. The key cylinder wiring is easily identified by 2 small gauge wires often enclosed in an Orange sheath. The resistance value measured at the base of the column, when the key is installed into the key cylinder, should match the key pellet value.
Diagnostic Codes:
None
User Comments:
Close Comment(s)
Category:
Chassis Electrical
Security/Anti-Theft
Starting and Charging
Cranking
Mileage: 55568
Customer Concern:
Intermittently, the engine will not crank over.
Tests/Procedures:
1. Check the resistance of the key pellet and document it.
2. Disconnect the key cylinder wiring at the base of the column and install an ohmmeter across the terminals on the steering column side of the connector.
3. Insert the key and check for the same resistance value as documented in the previous key test. If the resistance values do no match, there is a problem in the key cylinder or the wiring running through the steering column.
Potential Causes:
** Confirmed Fix **
Key cylinder and related wiring in the column.
Tech Tips:
It is important to rotate the key to crank when checking the resistance at the base of the column. The key cylinder wiring is easily identified by 2 small gauge wires often enclosed in an Orange sheath. The resistance value measured at the base of the column, when the key is installed into the key cylinder, should match the key pellet value.
Diagnostic Codes:
None
User Comments:
Close Comment(s)
Category:
Chassis Electrical
Security/Anti-Theft
Starting and Charging
Cranking
05-14-2008, 01:51 PM
#36
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here you go whats grip
2003 Chevrolet Corvette 5.7L
Mileage: 37000
Customer Concern:
The engine will not start. There is a code B2723 stored in the Body Control Module (BCM) for an ignition lock cylinder circuit problem.
Tests/Procedures:
1. Check for a erratic signal on the ignition lock cylinder circuit.
Potential Causes:
Ignition lock cylinder
Diagnostic Codes:
None
User Comments:
None
Category:
Chassis Electrical
Security/Anti-Theft
2003 Chevrolet Corvette 5.7L
Mileage: 37000
Customer Concern:
The engine will not start. There is a code B2723 stored in the Body Control Module (BCM) for an ignition lock cylinder circuit problem.
Tests/Procedures:
1. Check for a erratic signal on the ignition lock cylinder circuit.
Potential Causes:
Ignition lock cylinder
Diagnostic Codes:
None
User Comments:
None
Category:
Chassis Electrical
Security/Anti-Theft
05-14-2008, 01:51 PM
#37
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and another
2001 Chevrolet Corvette 5.7L
Mileage: 67270
Customer Concern:
Intermittent no crank and no Malfunction Indicator Lamp (MIL) light. Key On Engine Off (KOEO) the gages are inoperative. The Driver Information Center (DIC) display is erratic too.
Tests/Procedures:
1. Wiggle bank close to the ignition switch by hand and see if this fixes the vehicle.
2. If so replace the ignition switch.
3. If no change check for a loss of power to and from the ignition switch.
Potential Causes:
Ignition switch
Connection
Diagnostic Codes:
None
User Comments:
None
Category:
Chassis Electrical
Instruments/Meters/Indicators
Engine Performance
Starting
Starting and Charging
Cranking
2001 Chevrolet Corvette 5.7L
Mileage: 67270
Customer Concern:
Intermittent no crank and no Malfunction Indicator Lamp (MIL) light. Key On Engine Off (KOEO) the gages are inoperative. The Driver Information Center (DIC) display is erratic too.
Tests/Procedures:
1. Wiggle bank close to the ignition switch by hand and see if this fixes the vehicle.
2. If so replace the ignition switch.
3. If no change check for a loss of power to and from the ignition switch.
Potential Causes:
Ignition switch
Connection
Diagnostic Codes:
None
User Comments:
None
Category:
Chassis Electrical
Instruments/Meters/Indicators
Engine Performance
Starting
Starting and Charging
Cranking
05-14-2008, 01:58 PM
#38
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here you go whats grip
2003 Chevrolet Corvette 5.7L
Mileage: 37000
Customer Concern:
The engine will not start. There is a code B2723 stored in the Body Control Module (BCM) for an ignition lock cylinder circuit problem.
Tests/Procedures:
1. Check for a erratic signal on the ignition lock cylinder circuit.
Potential Causes:
Ignition lock cylinder
Diagnostic Codes:
None
User Comments:
None
Category:
Chassis Electrical
Security/Anti-Theft
2003 Chevrolet Corvette 5.7L
Mileage: 37000
Customer Concern:
The engine will not start. There is a code B2723 stored in the Body Control Module (BCM) for an ignition lock cylinder circuit problem.
Tests/Procedures:
1. Check for a erratic signal on the ignition lock cylinder circuit.
Potential Causes:
Ignition lock cylinder
Diagnostic Codes:
None
User Comments:
None
Category:
Chassis Electrical
Security/Anti-Theft
05-14-2008, 01:58 PM
#39
exactly what I posted except that sounds like its from a mitchell or similar program - i got pics up to - and whats grip got his fixed by following my resister mod (well its not mine but i posted it i mean)
05-14-2008, 04:08 PM
#40
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Sounds like my truck. Still know idea what fixed it but after turning the key off and on a couple hundred time she started. Not to mention checking every wire connection from the battery to the dash to the starter. This has happened twice and I think it was a combo of ignition swithch, bad ground on battery, and connection at starter. Good luck.