hesitation in response when the gas pedal is pressed
Discuss hesitation in response when the gas pedal is pressed on AllFordMustangs.com, the place for Mustang enthusiasts.
Welcome to our Mustang forums where Mustangers come together to hang out, discuss and enjoy their favorite Mustang hobby with fellow Mustang enthusiasts. We invite everyone to read, post, and enjoy our Mustang forum as well as the many other sections of our site.
You are currently viewing our forums as a guest. By joining our community you gain access to post topics, communicate with members, upload your photos and access many other special features. Registration is fast, simple and free so why wait, join our Mustang community today! If you have any problems with registration or your account login, please contact support.
Check your timing and make sure you're at least running at 10* BTDC. I would go ahead and advance the timing to 12*.
The fuel thing could also be an issue. If you're running off of 2 year old gasoline, I give you a BIG . I've seen what gas can do even after just sitting for a few months. Not pretty...
Change the fuel filter, and hopefully the fuel pump is OK...
-1994 Mustang GT "The Red Baron": 3.73 gears,K&N filter,GT40 tubular intake,BBK Full Length Headers,modified midpipe & Flowmaster muffs, timing at 12*. Best time- 14.74 @ 93.16 -Check profile for pics of our car collection! - AmericanMuscle ROCKS!! - "True Hot-Rods don't have valve covers!"
Definetly need to syphon the old crap out and fill w/ good premium or reg. If your going to advance your timing to 12* then use premium otherwise no need but check your timing to be @ 10*btdc. You will need to do a complete tune-up: Plugs, wires, cap, rotor, oil, filters, etc. Get a can of starting fluid a spray aroumd your intake while idling to check for a bad gasket or hose.
Most of the guys in here more than likely got it right when they are saying its bad gas or it just needs a nice tune up. If you already ran the gas might as well run it all out and then tune it up and change everything. Trying to syphon it out you are not going to get everything. No two mustangs are alike in throttle response. I have has some better than others. Most people overlook tps.
green to black should read .98v or as close as possible (loosen screws to adj then carefully retighten while holding in place) but thats probably not going to give it hesitation.
i AGREE i recalibrated my TPS a couple of weeks ago and i could tell a difference as soon as i started my car. the have been several threads about this subject-i would search the site so you can make sure you are doing it correctly. the car has to be off, the key has to be in the "on position" (when calbirating your voltage). then you need to start your car and recheck your idle screw on your TB. my car(5.0/5speed) is set at a 750RPM for idle, yours will vary based on year and transmission.
to add to the fuel thing, after syphoning out the old junk-add 1/2 a can of Sea-Foam to your tank and run it-you can pick it up at any auto parts store for around $8. good luck!!
86 GT Vert, Black, T-5, MAC shorties,40 series flowmaster 2-1/2", O/R X, CAI, EXP2 Upper and Lower, EXP2 injectors, 65 mm TB, Electric fan, 4:10's, 180* T-stat, MSD coil, cap and button, Taylor wires, 17x9 Cobra R's
07 Dodge Magnum. Electric Strawberry(Red), leather, DVD headrests(for the kiddos).....the grocery getter with an attitude! 87 Porsche 928 S4, Guards Red, sunroof, auto, leather, 18x10's in the rear and 18x8's in the front, magnaflow 2-1/2" exhaust