1989 GMC Sierra "lope tune" Questions

My 89 gmc sierra runs rough dosn't idle good (lopes)back fires till you get up to speed, when you hammer it it acts as though it gets flooded. I installed new plugs, cap, rotor, and fuel filter. could

Why does engine lopes but will not turn over? The engine lopes, but truck does not start When last time you have done tune up,fuel filter,coils.check battery and connection.

2001 ford taurus,lopes when first started,when cold. the car lopes,when its first started,after it sits all night. runs fine aqfter it warms up. intake manifoold leak check all vacuum lines 

engine idles rough at red lights begins loping rpms drop to almost killing, then cycles back to normal, then repeats rough idle drop in rpms and loping, back and forth until I rev engine or take off ...

It will not idle correctly. It starts loping then eventually dies. You have to put it in neutral or park when you stop and rev the engine a little to keep it from dying. It starts easily and runs fine

When driving engine surges or lopes first thing to come to mind is needs a tune up incloulding fuel filter.

when i accelerate in low gears it shakes alittle and struggles. It also stumbles while it idles sounds like loping. perform a tune up and see if that helps.

how can i read the code on my 97 gmc sierra truck still lopes after tune up To access trouble codes you'll need a code reader or scanner.

Truck will start, but when idle it lopes. If you press the gas down for awhile and let off it stops. Just replaced fuel filter and tuned it up. i would try the map censer i had the same thing and it ...

missing, loping...changed plugs and wires, distributer cap, checked compression......could it be an injector??? yes. nissan is famous for injectors, check the wiring to injectors,you said you had ...