Hi there,
I've been running into a weird issue that I've been trying to resolve with my 03 Focus ZX-5 (a/t). So my car has been essentially surging forward when I'm at a stop with my foot on the brakes. Sometimes, when I put the car in reverse, the revs are really high. If I keep my foot on the brakes (it'll go up to 2-3K rpm's just fighting me), it will eventually stall out and I have to restart the vehicle. It started doing this when I'm driving the vehicle in drive and stuck in traffic (my mechanic said the sensors for the transmission are fine as well). I'll hear an occasional click, it used to be more prominent (I noticed the lights would flicker as well as the LCD for the mileage). You've named it, I've probably had it replaced. Throttle body and alternator, replaced. My mechanic says there isn't a vacuum leak. I checked all the relays, nothing. When I checked the relays, I noticed R24 on the driver's side was hot (the source of the clicking noise). I did research, someone had a similar issue and it said a bad ground somewhere associated with the wiring that leads to the alternator, I replaced that whole set (battery leads and all). Issue is more noticeable with the A/C on. If I take my foot off the accelerator, sometimes the car will keep accelerating. I checked to see if the pedal was sticking but it's not. I thought maybe the fan was the problem because when it kicked in, the car would surge. Read up on the pigtails going bad on the fan connector, sure enough, it was bad. I also replaced the fan resistor relay since it was melted as well. When I start it, it starts at a higher RPM, like if I were stepping on the accelerator as I started it. I honestly have no clue what else to do.
I know you could say I should junk it but the car has sentimental value to me. My deceased father bought it for me while I was in college (my first almost new car). I can do some repairs myself but not everything. Any assistance is greatly appreciated!
I've been running into a weird issue that I've been trying to resolve with my 03 Focus ZX-5 (a/t). So my car has been essentially surging forward when I'm at a stop with my foot on the brakes. Sometimes, when I put the car in reverse, the revs are really high. If I keep my foot on the brakes (it'll go up to 2-3K rpm's just fighting me), it will eventually stall out and I have to restart the vehicle. It started doing this when I'm driving the vehicle in drive and stuck in traffic (my mechanic said the sensors for the transmission are fine as well). I'll hear an occasional click, it used to be more prominent (I noticed the lights would flicker as well as the LCD for the mileage). You've named it, I've probably had it replaced. Throttle body and alternator, replaced. My mechanic says there isn't a vacuum leak. I checked all the relays, nothing. When I checked the relays, I noticed R24 on the driver's side was hot (the source of the clicking noise). I did research, someone had a similar issue and it said a bad ground somewhere associated with the wiring that leads to the alternator, I replaced that whole set (battery leads and all). Issue is more noticeable with the A/C on. If I take my foot off the accelerator, sometimes the car will keep accelerating. I checked to see if the pedal was sticking but it's not. I thought maybe the fan was the problem because when it kicked in, the car would surge. Read up on the pigtails going bad on the fan connector, sure enough, it was bad. I also replaced the fan resistor relay since it was melted as well. When I start it, it starts at a higher RPM, like if I were stepping on the accelerator as I started it. I honestly have no clue what else to do.
I know you could say I should junk it but the car has sentimental value to me. My deceased father bought it for me while I was in college (my first almost new car). I can do some repairs myself but not everything. Any assistance is greatly appreciated!
one thing I did notice, I don't know if the surge is so strong or I'm losing vacuum on the brakes because they're all the way to the floor when it happens and the brakes just seem weak.
