Several issues with my 02

[93 teal terror]

Ok I knew this was gonna happen, but Ive got 4 problems with the car I just bought.

1. A/C compressor cycles on/off 4/6 seconds respectivley. A/C works fine, it does this anytime the air system is on. ie heat, defrost, vent, a/c, etc.

2. Theres a hanging idle....it likes to hang at 1350 and slowly drop to 750 after several seconds. I verified this with the digital readout trick. It does this anytime whether the ac is on or not.

3. Theres a hesitation around 2000-2500rpms under about half throttle. A full throttle run through the gears doesnt have this problem. Its almost more of a bucking than hesitation.

4. The fuel gage wont read full. I can fill it up to about 3/4 of a tank. The fuel light comes on at E and I can put about 11 gallons in when that happens. Using the digital guages feature, it will still sweep to full and then back down to E. Is this just a matter of pulling the needle off and ajusting it to read full?

The car is a 2002 gt with 3,620 miles on it. The motor is unknown, it may be the original/ it may not. The motor was out of the car for about 3 years, anything I should check for?

 

[twogts4us]

3600 miles and all this trouble? Wow - well, it's not necessary the mileage, but just the age.
#1 - sounds like low on Freon.
#2 - Replace the IAC
#3 - Replace the fuel filter for starters.
#4 - You might be able to pull and reset the needle, but I'd wonder how it got this way in the first place. If you do pull the needle, use a fork and gently pry.
What's the story with this Stang? You said it may not be the original motor...? Does it have any mods?

 

[93 teal terror]

Thanks Ill give those a shot. I dont wanna throw a ton of money at this car b/c right now I can still sell it to carmax for more than I have in it. Its been modified to hell. The stock longblock was supposidly swapped for a built shortblock and who knows what else. Im assuming the car had white face gauges and thats why the needle is in the wrong spot but Im not sure. Id rather fix these problems and drive it than sell it. I havnt found anything around here thats in near as good of shape for the money. I guess I should change the oil too, Im not sure if its ever been changed. Probably not b/c the motor was pulled with 1700 miles.
Edit: the car is now 100% stock except for whats listed in my sig. The car still has the air silencer on it now.

 

[dustang50]

Nice car, man!

One other thing that may help problem #2 is an IAC Restrictor Plate. Do a search on it in this forum & you should find what I'm talking about. A bunch of people have tried this trick & it seems to work...

 

[93 teal terror]

Nice car, man!

One other thing that may help problem #2 is an IAC Restrictor Plate. Do a search on it in this forum & you should find what I'm talking about. A bunch of people have tried this trick & it seems to work...

Thanks, Ill try that too if the new iac doesnt fix it. I tried checking the freon and when I took the dust cap off it shot in the air about 5 feet. Then when I put the adapter on the recharge hose, freon kept spraying out and I couldnt get the fitting to stay on. It kept popping off. It read full for the few seconds I had it on there and when the compressor would cut off the pressure would drop.