6.5 Lack of acceleration
#1
10-28-2012, 08:27 PM
Join Date: Oct 2012
Location: Toronto
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6.5 Lack of acceleration
Hey there.
I have a 1999 GMC Suburban 2500 with the 6.5. The truck has no problems accelerating 95% of the time, but every once in a while, after driving it for a little while, the truck seems sluggish on acceleration, and it starts to smoke. This problem doesn't always happend. I can drive the same route every day, and the problems doesn't happen everyday. I have changed/put in a bigger air filter within the last 1000km, so the truck should be getting enough air.
If anyone has had this problem, or willing to offer up suggestions, anything would be appreciated!!!
Thanks in advance!
I have a 1999 GMC Suburban 2500 with the 6.5. The truck has no problems accelerating 95% of the time, but every once in a while, after driving it for a little while, the truck seems sluggish on acceleration, and it starts to smoke. This problem doesn't always happend. I can drive the same route every day, and the problems doesn't happen everyday. I have changed/put in a bigger air filter within the last 1000km, so the truck should be getting enough air.
If anyone has had this problem, or willing to offer up suggestions, anything would be appreciated!!!
Thanks in advance!
#3
10-28-2012, 08:38 PM
Join Date: Oct 2012
Location: Toronto
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No, I don't have anything to do that with. Maybe i'll swing by my local shop tomorrow and see what they can do for me. Anything I can check without codes?
---AutoMerged DoublePost---
I was reading on another thread about pulling codes with a paperclip!?! Is this a legitimate way of doing it?
---AutoMerged DoublePost---
I was reading on another thread about pulling codes with a paperclip!?! Is this a legitimate way of doing it?
Last edited by 99Burban; 10-28-2012 at 08:38 PM. Reason: Automerged Doublepost
#4
10-29-2012, 11:57 AM
96+ is OBDII and a scanner must be used for code retrieval.
95> is OBD1 abd a paper clip and SES light can give codes.
Your 98 falls in the scanner only range.
Note if a code reader only is used,wright down the code #'s and ignore the description for now-manny scanners don't give the proper description for the 6.5 codes,but here they are:
OBD II codes for FAQs 96 and later model years
<DIR>
ODB II Diagnostic codes OBDII compliant reader required to access codes.
Not all codes show as "hard codes" that light the SES light, some are stored in the history as discrete faults</DIR>
P0101 Mass Air Flow (MAF) System Performance
P0102 MAF Sensor Circuit Low Frequency
P0103 MAF Sensor Circuit High Frequency
P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
P0113 IAT Sensor Circuit High Voltage
P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
P0118 ECT Sensor Circuit High Voltage
P0123 Accelerator Pedal Position (APP) Sensor 1 Circuit Performance
P0122 APP Sensor 1 Circuit Low Voltage
P0123 APP Sensor 1 Circuit High Voltage
P0126 Insufficient ECT for Stable Operation
P0182 Fuel Temperature Sensor Circuit Low Voltage
P0183 Fuel Temperature Sensor Circuit High Voltage
P0215 Engine Shut-Off Control Circuit
P0216 Injection Timing Control Circuit
P0219 Engine Over-speed Condition
P0220 APP Sensor 2 Circuit
P0221 APP Sensor 2 Circuit Performance
P0222 APP Sensor 2 Circuit Low Voltage
P0223 APP Sensor 2 Circuit High Voltage
P0225 APP Sensor 3 Circuit
P0226 APP Sensor 3 Circuit Performance
P0227 APP Sensor 3 Circuit Low Voltage
P0228 APP Sensor 3 Circuit High Voltage
P0231 Fuel Pump Feedback Circuit Low Voltage
P0236 Turbocharger Boost System
P0237 Turbo Boost Sensor Circuit Low Voltage
P0238 Turbo Boost Sensor Circuit High Voltage
P0251 Injection Pump Cam System
P0263 Cylinder 1 Balance System
P0266 Cylinder 2 Balance System
P0269 Cylinder 3 Balance System
P0272 Cylinder 4 Balance System
P0275 Cylinder 5 Balance System
P0278 Cylinder 6 Balance System
P0281 Cylinder 7 Balance System
P0284 Cylinder 8 Balance System
P0300 Engine Misfire Detected
P0301 Cylinder 1 Misfire Detected
P0302 Cylinder 2 Misfire Detected
P0303 Cylinder 3 Misfire Detected
P0304 Cylinder 4 Misfire Detected
P0305 Cylinder 5 Misfire Detected
P0306 Cylinder 6 Misfire Detected
P0307 Cylinder 7 Misfire Detected
P0308 Cylinder 8 Misfire Detected
P0335 Crankshaft Position (CKP) Sensor Circuit
P0370 Timing Reference High Resolution
P0380 Glow Plug Circuit Performance
P0400 Exhaust Gas Recirculation (EGR) Flow Malfunction
P0401 EGR Flow Insufficient
P0402 EGR Flow Excessive
P0404 EGR System Performance
P0405 EGR Sensor Circuit Low Voltage
P0406 EGR Sensor Circuit High Voltage
P0501 Vehicle Speed Sensor Circuit (VSS)
P0567 Cruise Resume Circuit
P0568 Cruise Set Circuit
P0571 Cruise Brake Switch Circuit
P0601 Internal Control Module Memory
P0602 Control Module Programming
P0604 Control Module RAM Check Sum
P0606 PCM Internal Communications Interrupted
P1125 Accelerator Pedal Position System
P1191 Intake Air Duct Leak
P1214 Injection Pump Timing Offset
P1216 Fuel Solenoid Response Time Short
P1217 Fuel Solenoid Response Time Long
P1218 Injection Pump Calibration Circuit
P1406 EGR Valve Position
P1409 EGR Vacuum System Leak
P1621 EEPROM Write
P1626 Vehicle Theft Deterrent (VTD) Controller Serial Data Circuit
P1627 A/D Performance
P1630 Theft Deterrent PCM in Learn Mode
P1631 Theft Deterrent Password Incorrect
P1635 5 Volt Reference Low
P1641 Malfunction Indicator Lamp (MIL) Control Circuit
P1643 Wait To Start Lamp Control Circuit
P1653 EGR Vent Solenoid Control Circuit
P1654 Service Throttle Soon Lamp Control Circuit
P1655 EGR Solenoid Control Circuit
P1656 Wastegate Solenoid Control Circuit
U1026 Loss of ATC Class 2 Co
95> is OBD1 abd a paper clip and SES light can give codes.
Your 98 falls in the scanner only range.
Note if a code reader only is used,wright down the code #'s and ignore the description for now-manny scanners don't give the proper description for the 6.5 codes,but here they are:
OBD II codes for FAQs 96 and later model years
<DIR>
ODB II Diagnostic codes OBDII compliant reader required to access codes.
Not all codes show as "hard codes" that light the SES light, some are stored in the history as discrete faults</DIR>
P0101 Mass Air Flow (MAF) System Performance
P0102 MAF Sensor Circuit Low Frequency
P0103 MAF Sensor Circuit High Frequency
P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage
P0113 IAT Sensor Circuit High Voltage
P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage
P0118 ECT Sensor Circuit High Voltage
P0123 Accelerator Pedal Position (APP) Sensor 1 Circuit Performance
P0122 APP Sensor 1 Circuit Low Voltage
P0123 APP Sensor 1 Circuit High Voltage
P0126 Insufficient ECT for Stable Operation
P0182 Fuel Temperature Sensor Circuit Low Voltage
P0183 Fuel Temperature Sensor Circuit High Voltage
P0215 Engine Shut-Off Control Circuit
P0216 Injection Timing Control Circuit
P0219 Engine Over-speed Condition
P0220 APP Sensor 2 Circuit
P0221 APP Sensor 2 Circuit Performance
P0222 APP Sensor 2 Circuit Low Voltage
P0223 APP Sensor 2 Circuit High Voltage
P0225 APP Sensor 3 Circuit
P0226 APP Sensor 3 Circuit Performance
P0227 APP Sensor 3 Circuit Low Voltage
P0228 APP Sensor 3 Circuit High Voltage
P0231 Fuel Pump Feedback Circuit Low Voltage
P0236 Turbocharger Boost System
P0237 Turbo Boost Sensor Circuit Low Voltage
P0238 Turbo Boost Sensor Circuit High Voltage
P0251 Injection Pump Cam System
P0263 Cylinder 1 Balance System
P0266 Cylinder 2 Balance System
P0269 Cylinder 3 Balance System
P0272 Cylinder 4 Balance System
P0275 Cylinder 5 Balance System
P0278 Cylinder 6 Balance System
P0281 Cylinder 7 Balance System
P0284 Cylinder 8 Balance System
P0300 Engine Misfire Detected
P0301 Cylinder 1 Misfire Detected
P0302 Cylinder 2 Misfire Detected
P0303 Cylinder 3 Misfire Detected
P0304 Cylinder 4 Misfire Detected
P0305 Cylinder 5 Misfire Detected
P0306 Cylinder 6 Misfire Detected
P0307 Cylinder 7 Misfire Detected
P0308 Cylinder 8 Misfire Detected
P0335 Crankshaft Position (CKP) Sensor Circuit
P0370 Timing Reference High Resolution
P0380 Glow Plug Circuit Performance
P0400 Exhaust Gas Recirculation (EGR) Flow Malfunction
P0401 EGR Flow Insufficient
P0402 EGR Flow Excessive
P0404 EGR System Performance
P0405 EGR Sensor Circuit Low Voltage
P0406 EGR Sensor Circuit High Voltage
P0501 Vehicle Speed Sensor Circuit (VSS)
P0567 Cruise Resume Circuit
P0568 Cruise Set Circuit
P0571 Cruise Brake Switch Circuit
P0601 Internal Control Module Memory
P0602 Control Module Programming
P0604 Control Module RAM Check Sum
P0606 PCM Internal Communications Interrupted
P1125 Accelerator Pedal Position System
P1191 Intake Air Duct Leak
P1214 Injection Pump Timing Offset
P1216 Fuel Solenoid Response Time Short
P1217 Fuel Solenoid Response Time Long
P1218 Injection Pump Calibration Circuit
P1406 EGR Valve Position
P1409 EGR Vacuum System Leak
P1621 EEPROM Write
P1626 Vehicle Theft Deterrent (VTD) Controller Serial Data Circuit
P1627 A/D Performance
P1630 Theft Deterrent PCM in Learn Mode
P1631 Theft Deterrent Password Incorrect
P1635 5 Volt Reference Low
P1641 Malfunction Indicator Lamp (MIL) Control Circuit
P1643 Wait To Start Lamp Control Circuit
P1653 EGR Vent Solenoid Control Circuit
P1654 Service Throttle Soon Lamp Control Circuit
P1655 EGR Solenoid Control Circuit
P1656 Wastegate Solenoid Control Circuit
U1026 Loss of ATC Class 2 Co
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