1998 Gmc Sierra P20AF Fault Code Check
When you check 1998 Gmc Sierra car engine light came on code P20AF the reason should be . However Gmc manufacturer may have a different definition for the P20AF OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
To solve P20AF 1998 1998 Gmc Sierra problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs
1998 Gmc Sierra P20AF OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP20AF Reductant Metering Unit Temperature Sensor Circuit High so you have to check ODB-II Fault Code Check list.Reason For 1998 Gmc Sierra P20AF CodeThe reason of 1998 Gmc Sierra P20AF OBD-II Fault Code Check is P20AF Reductant Metering Unit Temperature Sensor Circuit High. |
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1998 Gmc Sierra P20AF Possibble Fix Ways :
The engine relies on the glow plugs to generate heat to help with the combustion cycle. Some engines only use the glow plugs when cold but others will allow the glow plugs to work when the ECU (vehicle's computer) needs them to be on to help with combustion. Problems in this area will cause diesel engine starting problems, uneven running and white smoke when the engine is cold.
While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P20AF 1998 1998 Gmc Sierra code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.
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What does fault code P20AF mean for 1998 Gmc Sierra ?
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