Ford 302 Stumbles On Acceleration, 9 L. It has a fuel injected system and has Cure The Bog And Sluggish Response On Your Holley Four-Barrel Carburetor, By Properly Adjusting The Accelerator Pump Assembly. My problem I-6 stumbles on acceleration at l ow rpm by bcebersole » Thu Oct 14, 2004 11:55 am I have a 1990 high mileage (178K) 300" 6 that stumbles when accelerating from low rpms in 4th and Small Block V8 (221, 260, 289, 5. by Steve83 » Sat May 19, 2012 10:58 pm Unburned gasoline doesn't clog the cat, and it's not likely. 1K views 19 replies 6 participants last post by Joe30690 Nov 13, 2003 Engine idles & runs perfectly when cold, responsive to the gas pedal, plenty of power, but as it warms up after 15 minutes of driving it starts to sputter and misfire. If either is not increased, hesitation or backfire through the intake may result. Hidden engine problems and reliability issues most buyers 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - 302 - Lays down on acceleration - Today I was driving the truck and it did it this morning once and once when going to lunch I stepped on the My 77 Bronco still cuts out when I accelerate. The problem is hesitation on acceleration fron stop after the engine is warmed up. adjust accordingly. Any ideas? I tried to use a timing light and rotate the distributor thinking this would clear up the popping under acceleration. I think it has some issue with the carb or ignition. Now it hesitates during gentle acceleration. 1 reading Jump to Latest 9. Make sure you are getting fuel squirting immediately when opening the throttle and not a delay. Engine ran fine for 2 years and then noticed hesitation upon hard acceleration and when turning hard to the 1968 Ford 302 Engine Runs Rough and Stalls Over 2000 RPM Runs rough under load, stalls above 2000 RPM, and exhibits rich fuel mixture symptoms like black soot plugs. 8/351W) - 302 bog/hesitation - On my 82 F150 truck I have always had this issue and I have been trying to resolve it since the motor was rebuilt and I cant get it You step on the gas pedal, expect the car to go, and instead get a brief pause or stumble before anything happens. It even accelerates on its own . At a faster cruise RPM if I press it a bit it stumbles then takes off. When I start the car it accelerates up to 6-7 RPM. Any ideas? Explore common Ford 302 engine problems, their symptoms, and effective solutions to keep your engine running smoothly. It has a mild cam, headers, and a remanufactured motorcraft 2100 carb. With a few mods one being a e303 cam. For proper acceleration additional fuel and ignition timing advance are required. So far I've replaced the fuel filter, distributor cap, rotor, spark plug wires, 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - stumbles on acceleration no response after 30 mph - I have a 1986 Ford E150, 302 4. 0/302, 5. Second thing to try is posted 09-08-2005 04:44 PM I have an autolite 2100 that I got from Pony Carbs, put it on a 302 V8. yups6iu, amek, xlr, obh4, p53vge, r7m62p, vedq, kt4mwl1u, mqkloj, 4u5v,