- Sep 4, 2004
- 315
- 0
- 16
Hello all, been a few years since I've posted here, but I'm running into some problems with my car. 2002 GT, 5 speed, 102k miles. I noticed a few thousand miles ago that I was having some trouble accelerating below 2000 rpm. It seems as if I'm flooding the car if I give too much throttle, but if I try to make it sputter/bog down above 2k rpm, it accelerates no problem to 6k. It does seem to have a little more difficulty getting to red-line than before, but that can be expected after 100k miles. My first thought was rotten spark plugs, but they were changed around 55k and looked fine when I changed them. I have a clean K&N and already tried cleaning the MAF. I have tried removing the Predator tune with no effect. Ford is telling me it's the fuel pump, but I wanted to get a second (or more) opinion on the matter. I changed the fuel filter at 85k with OEM filter.
Bottom line: if I ease into the throttle <2k it is fine, but if I'm at, say, 1600 rpm and give it too much throttle it acts like it wants to die and bogs down. Above 2k rpm however, it runs like a dream, but with a weird power band that surges multiple times. Clean air filter, clean MAF, tune & no tune (tried both), and tried different grades of fuel. Thoughts? Thanks in advance!
Bottom line: if I ease into the throttle <2k it is fine, but if I'm at, say, 1600 rpm and give it too much throttle it acts like it wants to die and bogs down. Above 2k rpm however, it runs like a dream, but with a weird power band that surges multiple times. Clean air filter, clean MAF, tune & no tune (tried both), and tried different grades of fuel. Thoughts? Thanks in advance!