2000 GMC 2500 Pickup Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2000 GMC 2500 Pickup
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2000 GMC 2500 Pickup ProblemsCheck Engine Light With Code P1870
Vehicles equipped whit a 4 speed automatic transmission may develop a harsh 1-2 shift and/or illumination of the Check Engine Light with code P1870 stored. This can be caused by wear of the bore for the TCC isolator and regulator valves in the valve body. This condition does not commonly occur until the transmission reaches normal operating temperature. If the valve body is worn, replacement will be necessary to correct this concern.
It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.
The engine idle may be lower than normal due to deposits built up on the throttle body, which can restrict air flow at idle. To low of an engine idle can result in a stalling condition. Performing a throttle body service will generally correct this concern.
2000 GMC 2500 Pickup Questionsfuel problems, truck looses power when you accelerate (1 answer)
will not accelerate when you push pedal down all the way
speedometer work but doesn't show full speed and must feather gas to make shift. Tranny shop says loose connection, checked all connection still no work
first and reverse are hesitating and then jumping into gear. The servo might be at fault???? If so, can this servo be serviced without pulling the trans on this 4WD? It looks accessible in the manual but I question how it holds onto the 1st to rev band. does it just sit in the bands socket?(if it...