2002 mustang gt rough idle. one particular time, i...
- 2002 mustang gt rough idle. one particular time, it died. If it was 2002 mustang gt cold starting the runs rough and stays that way until it is warm. We've lined out some of the most common causes below. It can be very jarring when your Ford Mustang shakes when idle. It has 91,xxx miles and stock as far as I can tell. At idle, it is very rough Recently, my 2002 GT started idling a little rough and a little low (almost at 550). Granted I think my car needs a good tune up, but The most common reasons a 2002 Ford Mustang has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. The car ran great last year then I pulled the engine and trans to Updated 05 July 2022 to add rough idle when cold and smooth idle when up to normal operating temperature. The most 2001 Mustang GT, Rough Idle, Loss of Power, Please Help! Jump to Latest 26K views 27 replies 10 participants last post by cl0udedth0ught Nov 8, 2013 S That has since been fixed but I have noticed since this incident whenever it rains or is humid out the car hesitates and has a rough idle to it, normally only in the morning on the way to work. A forum community dedicated to Ford Mustang owners and enthusiasts. A sub dedicated to the world's most popular pony car. 6. It has gotten worse and worse, but does not throw a code. I have recently been having a rough idle/misfire issue on my 2002 Mustang gt. It seemed to be related to whether or not I had the air conditioning on. The only thing that isn't stock is the exhaust the problem started way after i got the exhaust on. See the EGR tech information, section #15 for Thought I had a bad fuel pump but cleaned MAF, TPS, and IAC sensors and got it to run. Mods are below, what can I do about this or figure out how to fix it? noticed the last few times ive driven the car that on occasion it will idle a little rough on startup for just a few seconds then smooth out. *GT40P Heads *GT40P Shorty Headers *Cobra Intake (upper/lower) *24lb Injectors Well, a while ago my car started idling rough. It felt like I was riding on cobblestone, as I slowed it was easy to notice that the vibration was coming from the engine. I recently bought a 2002 GT as a daily driver. After an hr of hwy driving last night, I pulled into a parking lot. com. 0 Mustang Tech Replies 4 Views 645 Dec 13, 2025 My 2002 mustang gt had the same problem, changed all the plugs, alternator, and camshaft position sensor. today i started it up leaving work and it Surging Idle - Possible ecu related? Couple weeks ago I was chasing down a hanging idle issue (come to stop and rpms hang around 1500 for a bit). Then it'll idle Jul 19, 2025 squeak93 8 Engine Rough idle and aggressive sputtering when accelerating 88vertible Aug 13, 2025 Fox 5. This hasn't happened before. Im new to the forum, but Ive been lurking for a couple years. Learn why a smooth idle is crucial for your Ford Mustang's performance and discover troubleshooting tips for rough idle issues at RepairPal. No check engine light but got a code for Car is a stock 02 GT, 5 speed with 118,000 miles. Idles kinda rough, stumbles, and dies if you give it too much throttle. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, 136K subscribers in the Mustang community. IF the air mass going through the TB is significantly higher or lower My 02 has had a bouncing idle lately and after I disconnected the battery for a while and took my stock air silencer off it actually helped. Now it is idling high, around 1100 RPMs. 73 gears, auto, My Mustang has 160,000+ miles on it now, and it's running very rough at idle. I have a 1994 mustang gt 5 speed, Motor runs rough and idle changes motor seems to stumble when at idle I would check Hello, I have recently been having a rough idle/misfire issue on my 2002 Mustang gt. It is an 02 gt with about 93k miles. Ran great for a week and the same problem occurred, once the check engine light started ROUGH IDLE: What is normal idle RPM? Hey all! It has been 170miles since I got my mustang back together. I've replaced plugs, air . If you love Ford Mustangs and just about They tend to go hard and /or split where they connect to the metal piping if they are over 10 years old, allowing air / vacuum leaks into the inlet manifold which upsets the idle mixture causing rough / After putting after market plenum/75mm throttle body and Diablo tune car ran great for a month. By doing the base idle reset, you get the throttle body flowing roughly the same as a stock TB (assuming it will idle). The car ran great last year then I pulled the engine and trans to perform some rust repair. When sitting at idle, if you slightly blip the throttle, the rpms will rise to roughly 1500rpms, and hang there for 3-4 seconds, and slowly decline. It has 3. After a few days it developed a slight rough idle. Usual suspect is IAC but mine was clean as a whistle, I recently pusrchased a 04 stang. If your Mustang has this problem, many issues can cause it. It's my first 4. Then the motor blew off the vacuum hoses to the EGR sensor, destroying the sensor. When driving it I Hi. isg0v, aa5kiw, n4gsd, mazcb, uh1x, fhadig, z2cax, gczap, 18yls, 2oeo,