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!!!:tu: Thanks in advance! |
Have you pulled codes yet??
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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?:humm:
---AutoMerged DoublePost--- I was reading on another thread about pulling codes with a paperclip!?! Is this a legitimate way of doing it? |
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 |
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