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24 Posts
Hey guys, please read the whole thing, it may help you figure it out. Okay, here's a problem for you guys i've been having for about 3 months now, ( I know i know, Should have been fixed a looong time ago, but time and money was an issue.) 2000 Ford Focus ZX3 with about 111,500 miles on it. Upon starting, hot or cold temperatures, isn't fixed when engine warms up, sits at about 3000 to 4000 RPM's (varies on each start but never starts normally.) Eventually after perhaps 10 seconds, once again varies upon start, will go down to an idle of 1100 RPM's. It will not go any lower. When driving, it shifts fine but when you release the gas, it hangs (sometimes surges up a bit) then goes down to an idle of approx. 1400-2000 RPM's. Then, right before you completely stop, it surges forward and the brake most of the time feels as if it wouldn't stop the car in an emergency. (due to the high RPM's I assume. I have to anticipate my stops WAY ahead, and plan for that surge so I don't rear-end anyone. and I've had to put it to the floor many times. The idle will go back down to 1100 RPM's (no lower, EVER) once you completely stop. Also, when you have your foot off the gas, car will accelerate. For example, I was driving today and released my foot off the gas at 20 MPH. By the end of the street, (200-300 yards) I was going 40 MPH, all on it's own. HELP?! also on a side note, this BLOWS as it ruins my gas mileage.
Things I have tried/replaced etc.
- Checked the MAF, swapped it out for an identical working focus, and cleaned it (last night)
- Replaced air filter with a K&N filter
- Cleaned out the throttlebody with seafoam, then afterwards with Valvoline TB/Carb cleaner. Didn't flood it either.
- Removed IACV (A feat unto it's own[vommit] ) and cleaned it with CRC Electrical parts cleaner. (I did not flood it, merely sprayed some in, let it sit and wiped it out. I was very dirty, obviously. I repeated this probably 10 times before I was satisfied and let it dry under a light for about 18 hours. (Patience is a bitch) lol
- Replaced spark plugs with motorcraft platinum plugs. I had bought Bosch's but before I put them in, I checked here and saw the problems everyone has with them so I went and exchanged them. No dirt got in the cylinders and i applied dielectric grease the all the connections and cleaned the wires. I will be replacing them with focussport wires once they arrive.
- Replaced the TPS Sensor. Very interesting fact. When the problem originated, my genius ^_^ roommate told me right off the bat to go out and buy a new TPS sensor. Which I did. 50 bucks later, I am almost positive that it was the wrong one, or wasn't meant for my throttlebody, or needed an updated pigtail. Because when I put the new one in, the problems got so much worse, car would hang at 5000 or 6000 when put in neutral or park and not go down until car was shut off. And it would slip in every gear. Also I had NO power when I had that one in. My acceleration was pathetic. I really didn't put two and two together until a month ago, when i decided to replace the one I had bought with my old one. The slipping disappeared and the revs were a little better, but definitely NOT fixed by any means of the word. I also swapped a TPS out of my brother's 2000 Manual Focus, with generally the same issues.
Some last bits of info/questions.
- I have a new PCV to put it in but im really hesitant to pull off what I think is the right hose because I'm not sure if it is and it really doesn't seem like it wants to come off.
- CEL was on until today. (might still come back on, just put the battery back on today after cleaning the IACV and ran and drove it for about 20 mins and let it idle by itself afterwards for about another 20 minutes. It has been throwing the P1506 code (IACV?!)
One last thing, When car is put in park or neutral it revs and hangs like it always does, but takes a lot longer for it to go back down. MAYBE a vacuum issue? where are all my vac lines so I can replace them all, bad or not. But why would I be throwing the P1506 code? Car runs the same with the IACV thoughly cleaned. I would just go buy a new IACV but they are a crapload of clams and I don't want to go and spend 200+ on part that doesn't cure my problem.
Okay, that is my majorly irritating problem. Laid out in black and white., and if you guys can't figure it out, I don't know who can, besides the obvious.
Thanks in advance! my faith is the gearheads of Focus Fanatics! [thankyou] [ffrocks]
Things I have tried/replaced etc.
- Checked the MAF, swapped it out for an identical working focus, and cleaned it (last night)
- Replaced air filter with a K&N filter
- Cleaned out the throttlebody with seafoam, then afterwards with Valvoline TB/Carb cleaner. Didn't flood it either.
- Removed IACV (A feat unto it's own[vommit] ) and cleaned it with CRC Electrical parts cleaner. (I did not flood it, merely sprayed some in, let it sit and wiped it out. I was very dirty, obviously. I repeated this probably 10 times before I was satisfied and let it dry under a light for about 18 hours. (Patience is a bitch) lol
- Replaced spark plugs with motorcraft platinum plugs. I had bought Bosch's but before I put them in, I checked here and saw the problems everyone has with them so I went and exchanged them. No dirt got in the cylinders and i applied dielectric grease the all the connections and cleaned the wires. I will be replacing them with focussport wires once they arrive.
- Replaced the TPS Sensor. Very interesting fact. When the problem originated, my genius ^_^ roommate told me right off the bat to go out and buy a new TPS sensor. Which I did. 50 bucks later, I am almost positive that it was the wrong one, or wasn't meant for my throttlebody, or needed an updated pigtail. Because when I put the new one in, the problems got so much worse, car would hang at 5000 or 6000 when put in neutral or park and not go down until car was shut off. And it would slip in every gear. Also I had NO power when I had that one in. My acceleration was pathetic. I really didn't put two and two together until a month ago, when i decided to replace the one I had bought with my old one. The slipping disappeared and the revs were a little better, but definitely NOT fixed by any means of the word. I also swapped a TPS out of my brother's 2000 Manual Focus, with generally the same issues.
Some last bits of info/questions.
- I have a new PCV to put it in but im really hesitant to pull off what I think is the right hose because I'm not sure if it is and it really doesn't seem like it wants to come off.
- CEL was on until today. (might still come back on, just put the battery back on today after cleaning the IACV and ran and drove it for about 20 mins and let it idle by itself afterwards for about another 20 minutes. It has been throwing the P1506 code (IACV?!)
One last thing, When car is put in park or neutral it revs and hangs like it always does, but takes a lot longer for it to go back down. MAYBE a vacuum issue? where are all my vac lines so I can replace them all, bad or not. But why would I be throwing the P1506 code? Car runs the same with the IACV thoughly cleaned. I would just go buy a new IACV but they are a crapload of clams and I don't want to go and spend 200+ on part that doesn't cure my problem.
Okay, that is my majorly irritating problem. Laid out in black and white., and if you guys can't figure it out, I don't know who can, besides the obvious.
Thanks in advance! my faith is the gearheads of Focus Fanatics! [thankyou] [ffrocks]