kevkev
Senior Member
Truck stalled. Would turn over but, not start.Would run when really putting the gas too it but nasty. So I stopped. Only code was P2172.P2172 Throttle Actuator Control System - Sudden High Air Flow Detected
I thought and hoped it was a cracked manifold. Nope. Broken valve spring on number six-exhaust. Bent the push rod. I got a scope and looked at piston. Some scuffs but i think not broken. Replacing spring and pushrod. Valve did not drop. Just got beat on a bit. I rotated it in the valve guide, lifted it and rotated it. no resistance. I do not think it is bent.234K miles. Im posting this because looking for this code I got so much BS.Oh yeah. I can beat that push rod straight with a hammer. Right?Since I have the valve covers off and Im into it, might as well replace the valve seals.
I thought and hoped it was a cracked manifold. Nope. Broken valve spring on number six-exhaust. Bent the push rod. I got a scope and looked at piston. Some scuffs but i think not broken. Replacing spring and pushrod. Valve did not drop. Just got beat on a bit. I rotated it in the valve guide, lifted it and rotated it. no resistance. I do not think it is bent.234K miles. Im posting this because looking for this code I got so much BS.Oh yeah. I can beat that push rod straight with a hammer. Right?Since I have the valve covers off and Im into it, might as well replace the valve seals.
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