Low power detonation symptoms--considering cooler t-stat?

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Posted to Technical Discussion Forum on 4/26/2013 14 Replies

This is a cutaway van with a utility contractor box (HVAC -contractor) w 41K.

complaint: > 85 degrees amb F, low engine power, dead accel pedal intermittently, no detonation noise, but detonation like symptoms. Worsens when engine coolant temps > 205 deg F. ... Login to read more.

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Vehicle Data

2011 Chevrolet Express 2500 6.0L Hesitation

Engine	6.0 L
Trans	6-speed Automatic (Electronic)
Symptoms	Hesitation

Vehicle Data

2011 Chevrolet Express 2500 6.0L Hesitation

Engine	6.0 L
Trans	6-speed Automatic (Electronic)
Symptoms	Hesitation

14 Replies Received (View Replies)

14 Replies Received (Hide Replies)

Vehicle Data

2011 Chevrolet Express 2500 6.0L Hesitation

Vehicle Data

2011 Chevrolet Express 2500 6.0L Hesitation