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95 GMC , loss of power under load

Solved I have the problen solved...bad ground...ground form cab to frame located by heater hoses was broke...fixed and problen went away. Go figure.
- msull20
- Post #6
- Nov 6, 2012
- Forum: Engine Performance + Maintenance
M
5.7 running rough, surging, rough idle

Im having a similar problem..what did it end up being?
- msull20
- Post #5
- Oct 28, 2012
- Forum: Engine Performance + Maintenance
M
95 GMC , loss of power under load

So..I have replaced fuel filter,,checked pump pressure (15lbs at filter) , New Throttle position sensor, Coolant temp sensor, thermostat, plugs, wire, cap and rotor and still have loss of power under load. When it acted up last time I stopped truck and pulled air cleaner...loud sucking sound...
- msull20
- Post #4
- Oct 28, 2012
- Forum: Engine Performance + Maintenance
M
95 GMC , loss of power under load

Worked on it today does anyone know what the ref volt is on the egr selonoid?...I have no voltage..I bridged 5-6 voltage to it with no change .
- msull20
- Post #3
- Oct 7, 2012
- Forum: Engine Performance + Maintenance
M
95 GMC , loss of power under load

Could use some ideas what might be causing my 95 GMC 2500 4x4 to loss power ,miss, not accel, barely run over 10-15 mph until check engine light come on .Then truck will run fine. Pulls code 45 and 85. Truck runs fine with no load..but when I hook up trailer with small ford tractor on back... I...
- msull20
- Thread
- Oct 6, 2012
- Replies: 5
- Forum: Engine Performance + Maintenance