Sound like bad fuel pump?

[281pony]

we just did my new transmission/clutch and i was driving along really grandma like for the breakin and it started about 20 miles in.

ill be going and it feels like someone taps the brakes real quick. just normal driving, then bum.. then its normal. does it about every half mile or so. the other thing i've noticed is, it does it at 1500 rpm's or less. maybe i just can't feel it above those rpm's?

car idles, drives, accelerates, ect everything like normal otherwards. pump is priming fine before starts it seems, but my cousin and uncle have had similar problems and the fuel pump was going/went.

just want a little feedback before i point at anything. my fuel filter and injectors are also brand new and are functioning fine. thanks. seems like you fix one damn thing on these cars and it rewards you with more bs.

 

[blackstangt]

far stretch, but this always seems to be the problem...Timing...mabye.

 

[HISSIN50]

if you think you are losing FP, get a gauge on it. worse when engine is cold or hot? any codes?
good luck.

 

[281pony]

i have a fp gauge under the hood, haven't watched it yet.

as far as getting worse hot or cold. it really hasn't changed much. if anything, the warmer it gets the more it happens.

 

[HISSIN50]

ok, as im sure you know, as a FP on the way out gets hot, it can stumble (the diaphram has lost its integrity and does not work as it should).

but a TFI on the way out can also cause some issues when physically hot (why i suggested a FP gauge to determine which). FP is more likely. it should get a lot worse quick. is it noisier than normal?

 

[281pony]

nope. isin't any louder then normal.