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2014 Gmc Savana 1500 P1491 Fault Code Check

When you check 2014 Gmc Savana 1500 car engine light came on code P1491 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Gmc manufacturer may have a different definition for the P1491 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P1491 2014 2014 Gmc Savana 1500 Code Clear

To solve P1491 2014 2014 Gmc Savana 1500 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

2014 Gmc Savana 1500 P1491 OBD-II Diagnostic Powertrain (P) Trouble Code Description

2014 Gmc Savana 1500 car P1491 OBD-II Trouble Code Secondary Switch Solenoid Circuit Malfunction is one of the definitions for the P1491; however your vehicles manufacturer may have a different definition for the P1491 code. Please check below for you

Reason For 2014 Gmc Savana 1500 P1491 Code

The reason of 2014 Gmc Savana 1500 P1491 OBD-II Fault Code Check is P1491 Secondary Switch Solenoid Circuit Malfunction.
P1491 Code Reason

2014 Gmc Savana 1500 P1491 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.

The rule of P1491 2014 2014 Gmc Savana 1500 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of P1491. Likewise, overriding the OBD P1491 2014 2014 Gmc Savana 1500 system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

What does fault code P1491 mean for 2014 Gmc Savana 1500 ?
What does a diagnostic reading P1491 mean for 2014 Gmc Savana 1500 ?
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