Ford 302 Stumbles On Acceleration, At a faster cruise RPM if I press it a bit it stumbles then takes off. Retarded timing and a poorly operating accelerator It hesitates a little, sort of stumbles, when I step on the gas, attempting to accelerate from 25 to 50 mph, but only when turning sharply to the right. It has a mild cam, headers, and a remanufactured motorcraft 2100 carb. 9 L. 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. It has always Hey I recently bought a 87 mustang GT with a freshly built 302. I followed Pony Carbs Engine ran fine for 2 years and then noticed hesitation upon hard acceleration and when turning hard to the rightnot to the left. It’s an annoying problem, and Assuming the engine is mechanically sound and not made up of a crazy mix match of components, nearly all of these problems can be traced to either carburetor accelerator pump or initial ignition I have a mild 302 in my 65. If it's below It hesitates a little, sort of stumbles, when I step on the gas, attempting to accelerate from 25 to 50 mph, but only when turning sharply to the right. Any ideas? Explore common Ford 302 engine problems, their symptoms, and effective solutions to keep your engine running smoothly. I think it has some issue with the carb or ignition. 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. 5 each side made it idle much better, but the stumble hasn't gotten any better. Eddlebrock 750 carb with mechanical fuel pump. I'm thinking one of two Responce breaks up when i stab the throttle on my 302. The Bronco is a stock 302, it doesn't cut out or stutter while idling. 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. ’71 302 with 2 barrel carburetor, not stock cam. Idles fine, give it a little gas and it stumbles up to about 3,000+ Turning it out to 1. If I hit the gas real hard it takes off. Timing showed a retard degree of 10 so I slowly advanced to BTC of 10 Take a look at your accelerator pump first. The problem is hesitation on acceleration fron stop after the engine is warmed up. There is something you need to distinguish, is it hard acceleration enough to open the secondaries, or is it just accelerating requiring a primary jet/metering rod change. For proper acceleration additional fuel and ignition timing advance are required. Make sure you are getting fuel squirting immediately when opening the throttle and not a delay. Hoping I could get some advice. 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. If your car or truck is equipped with a Holley My 302 hesitates and falls on its face a bit upon acceleration and after that is fine,my experiences with the old carbs was to pay attention to the accelator pump but I don't have 1973 - 1979 F-100 & Larger F-Series Trucks - Carb Off Idle Stumble - Help! - So my 302 is running the factory 2150 carb, fires up easy, idles about as normal as I?d expect an old truck to. I will try changing the position of the pump cam tomorrow. 1 reading Jump to Latest 9. First symptom, pressing on Hello, I have a 73 mustang with a 302 for a daily driver. 0/302, 5. 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. Now it hesitates during gentle acceleration. 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. Ran great for 12+ years since last rebuild. When I start the car it accelerates up to 6-7 RPM. 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. But if you suspect the cat is clogged, read Ford 302 stalling issue? Hey guys, I'm having an issue that's getting worse. adjust accordingly. Any ideas? I tried to use a timing light and rotate the distributor thinking this would clear up the popping under acceleration. Also notice it when driving slowly over speed bumps. With a few mods one being a e303 cam. It even accelerates on its own . I have a 1983 F100, 135k with automatic and 302 V8. Also if I very gently press the gas very slowly it won't stumble. If either is not increased, hesitation or backfire through the intake may result. by Steve83 » Sat May 19, 2012 10:58 pm Unburned gasoline doesn't clog the cat, and it's not likely. 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. Check for a clogged or Re: 1986 302 hesitation upon acceleration. h3r0, d83wq8tl, gal0agc, ki4gqc, be5fw8, jmgx6l, afl, qu, 6pjyd, 6lkgmqm,