It cud b ignition related..components wearingout or injector carb related. Nevr guess on a remedy. Get an engine dyno test done
SOURCE: No power accelerating or going up a hill
HAVE SOMEONE CK THROTTLE POSITION SENSOR AND CATALYTIC CONVERTER MAKE SURE EXHAUST IS CLEAR
SOURCE: head lights dimming and losing power while driving
Next time this happens, pull over and unscrew the gas cap. The vent may be clogged.
Otherwise, your catalytic converter may be failing. It can also clog and hinder engine exhaust.
Good luck !
SOURCE: Where is Fuel Relay for 2004 Dodge Ram 3500 Diesel Truck
it doesn't have a fuel pump relay it has a fuel pump control unit and it is located on the chassis back quarter drivers side near the tube cross member for chassis on top of chassis rail near bed mount. locate the rear springs front perch and it will be above that on top of rail.
hope this helps. good luck and please ask any question you have.
Testimonial: "Thanx for info..no wonder I couldn't find Relay! "
SOURCE: 1999 Suburban, 5.7L loss of power then, it seems
Replace spark plug wires and plugs. Sometimes old wires will arc to the engine block, causing missfire. Check the wires at night with lights off and engine running, if they're bad, you'll defenitely see them arcing to the engine. if they are...replace.
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