Getting a "flat Spot"

[ryansouthman]

2ners i have a mitsu lancer with the 4G18 SOHC engine, when i'm driving at around 50/60 and i pressout i getting a flatspot/buck then the car picks up, i have cleaned injectors,changed plugs,Cleaned TB, replaced the plug wires, replaced coil packs. anyone ever dealt with this before

[awesomeandre]

did you change the fuel and air filter

[ryansouthman]

yup, forgot to mention that

[janfar]

Check the lil mesh on the fuel pump inside the tank. Could be clogged. If so yuh may have to clean the tank out.

[Anil_Sooknanan]

does the problem always happen or is it a now and then problem. it maybe fuel related as the fella ^^^ said it sounding like the pump filter or the pump not pumping enough fuel

[ryansouthman]

all the time, tried a new pump but same thing, tried changing air filter,no air filter and same thing

[cinco]

have you tried cleaning the MAF sensor? check it for broken wires also

[V2NR 3.0]

Some areas to start trouble shooting:

1. Gas filters (if you have one in the tank)
2. Check your sensors (do a diagnostic)
3. Check your distributor and sparkplug wires

[~Vēġó~]

any progress ryansouthman???

[ryansouthman]

scanned they say its the step up motor or something like that.......

[Rooki3]

you sure somebody en throw water in yuh gas tank

[Dj_Bee]

Could be your transmission

[badmanbopeep]

wen u mash out yur rpm rising even b4 it pick up?

[nismotrinidappa]

i used to drive a bluebird where the accelarator cable was worn and caused a flat spot
when u press out it happens


check ur cable or try changing it