I have a 1995 chevy silverado 1500 with a 350 and 4x4. i just replaced the fuel pump and yet it still studders when i go to take off from a stop and if i get on the gas. i thought it was the ignition module, i replaced it and it still does the same thing. its almost as if all eight cylenders misfire at the same time for a split second. it also does it when cruising with my foot barely on the gas, usually at 600 rpms and 1500rpm. any idea?
You have ignition spark plug wire problems
SOURCE: 95 chev k1500 studders while at low rpms
I would take the throttle body off and look at the fuel pressure regulator spring they have a bad habit of breaking or getting weak and getting alot of sludge on the diaphram you can buy a regulator kit aftermarket if you need one.
SOURCE: when driving 50 mph and above the rpms flucuate
may have alternator problems cheak to make sure not over charging not over 14 amps under 12.7
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Same thing happens with my 95. I put some Gumz Out injector cleaner in it and it seemed to clear up after about 10 miles. Still bringing it in to have codes checked. Only about 10,000 miles on the new motor.
1995 chevy 1500 truck 5.7 stumbels at take off ,falls on its face when shifts to higher gear. back fires thru throttle body some times.
Replaced - 02sensor, EGR Valve, EGR Selinoid, Cap, rotor, plugs,
Fuel modulator on throttle body, fuel pump, fuel filter. no change
NOTE if I unplug the EGR vacum line from the EGR selinoid and plug it up the truck runs 50 % better but sill stumples and pops.
Any Ideas ? COuld it be a fuel regulator in the throttle body ?
hey, i hit a water hole in my truck one time and it would sputter and all that junk.. I replaced all the spark plugs just because.. but my problem was the distributor cap. I took it off and looked in it and it was getting some corrosion in it and all.. if you haven't changed it in a while go ahead and check that and see what it looks like
does check engine come or came on?if so,scan for code!if not check for bad spark plug wires or plugs,fuel pressure,fuel filter, fuel pressure regulator,dirty injectors!
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