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Did you find the problem with your truck? I have the same problem with my 02 (5.3 l), but it happens only when I have the truck in 3rd gear and happens regardless if tow/haul on or off. Never happens when in overdrive. My mechanic checked the codes and found misfires but found everything in working order. He re-calibrated the crankshaft shaft sensor a few weeks ago. Don't know yet if that cured it or not though...
What else can I help you with?
What if service engine light is blinking on a Chevy silverado?
Normally a flashing check engine light means you have a misfire. Do not ignore this as an engine misfire will damage the O2 sensor and the catalytic converter which are very expensive to replace. Have this repaired immediately.
Why is your engine light on and blinking on your 2001 Ford F-150?
If the check engine light is blinking that means an engine cylinder misfire has been detected
Blinking engine light Ford F150 pick up?
If the check engine light is blinking that indicates an engine cylinder misfire has been detected
Check engine light keeps blinking on a 97 tercel?
If the check engine light is blinking that means an engine cylinder misfire has been detected
Car shakes when turned on. engine light starts blinking on and off?
If the check engine light is blinking that means an engine cylinder misfire has been detected
Engine light blinking running rough shaking when idling?
If your check engine light is blinking that means an ignition misfire has been detected
What size engine does the 2007 Chevrolet Silverado-2500HD have?
The 2007 Chevrolet Silverado-2500HD has a V8 engine.
What size engine does the 2014 Chevrolet Silverado-2500HD have?
The 2014 Chevrolet Silverado-2500HD has a V8 engine.
What size engine does the 2011 Chevrolet Silverado-3500HD have?
The 2011 Chevrolet Silverado-3500HD has a V8 engine.
What size engine does the 2012 Chevrolet Silverado-3500HD have?
The 2012 Chevrolet Silverado-3500HD has a V8 engine.
What size engine does the 2006 Chevrolet Silverado-1500 have?
The 2006 Chevrolet Silverado-1500 has a V6 engine.
What size engine does the 2010 Chevrolet Silverado-3500HD have?
The 2010 Chevrolet Silverado-3500HD has a V8 engine.
