If your car or truck is equipped with a Holley four barrel carburetor and stumbles upon acceleration, more than likely the carburetor needs an adjustment to the accelerator pump assembly. temp sensor,Ignition m … read more The high pressure side typically runs at about 500 psi at idle, 1,200 psi at about 3,300 rpm and about 3,600 psi under full-load acceleration. 7 and the 4l60e tranny … read more 6Bucs Senior Master Tech Associate Degree 1,638 satisfied customers I have a 1990 chevy k1500 with a tbi 350 and it Chevy Mechanic: Mike S. Although the 350 TBI Chevy was discontinued in 2002 to replace more fuel-efficient models, many drivers still love these engines. i just got the truck about 4 monthes ago and it had a jasper motor put in it in 2004 so its got 65,000 miles on it. started dieing randomly more and more often. Answer: There are several ways to go about your Chevy K2500 setup, Nathan, by remaining with the original Re: 350 TBI acceleration problem Perhaps it's better for me to copy/paste my issues in a separate thread, then ask a mod to delete non-relevant posts to this thread. Hi I have a 1991 chevy Silverado that just started about a week or 2 ago misfiring randomly and cutting out under load. 350 turbo trans 3500 stall 411 gears holley 850 double pumper. Fuel delivery problems, ignition system problems, and muffler restrictions are all common causes of bogging. Throttle - Answered by a verified Auto Mechanic New plugs, wires, cap, rotor, O2 sensor. Diagnostic: This Code will flash whenever the diagnostic terminal is grounded with the ignition switch turned on and the engine is not running. My truck (in sig) just developed a bad stumble on acceleration. Throttle Position Sensor (TPS) The job of the TPS is to tell the computer what the position of the throttle is. If the number is above 10 then turn the screw IN (clockwise) until the IAC Steps are between 3 … Holley Sniper hesitation/bog on sharp accel. I have put new plugs, cap, rotor, and have ran a can of sea foam in the gas tank. (Tach doesn't work so RPM numbers are a guess. better if you can monitor your FP while doing a WOT run to see if it holds. Motor wants to stall while in gear (but doesn't do it out of gear once over 1000 rpm it dosent) seem to stall and it is only from a dead stop. This may result in an unusually high or low idle speed, or in some cases a surging idle speed that repeatedly climbs and falls. pull that vacuum line from the valve and see if it still stumbles. Replaced the engine and it starts and runs fine, until you drive it under load. I have been working on our 89 Chevy K1500 and am still having an idle issue. The parts will cost you between $50 and $100 on average. In contrast, The fuel system is sensitive to engine load variations. 7L 350 4x4 V8 I'm new to this forum so forgive me if I break any rules. A few days later it began to stumble and hesitate upon acceleration. My 283 stumbled on acceleration but once up to speed it would run smooth but would stumble on any accel attempt. I have advanced my timing, tried to adjust the 1 Answer. Putting trans in neutral IAC drops back down to about 45 and eventually coolant temp will drop back down to 190. This valve will stick and wont allow exhaust gas to Need help! I have a 1990 Chevy TBI 350 in my FJ40. Fuel injectors are responsible for delivering fuel to the engine, and a dirty fuel injector can cause problems such as a rough idle. When I first crank it up and go, it hesitates and stumbles for a minute and then pick up speed. Top 10 Reasons Your Car Hesitates When Accelerating or Driving. I replaced the plugs, wires, cap, rotor, and air filter. I'd pull the spark plugs, look at the cap and rotor first. I ran Hey i have a 1994 chevy k1500 (350 TBI) i put new head gaskets and intake manifold gaskets in it and set the valves lash 3/4 of a turn more after 0 lash. 91 350 TBI, Open loop part throttle hesitation. Torque converter is typically used in automatic … 2. on rare occasion it wll hard miss yes Chevy Mechanic 1995 Chevy K1500 203K mi. Starts and idles … My 1995 chvey truck tbi stumbles on acceleration and everything else is working properly - Answered by a verified Chevy Mechanic We use cookies to give you … What you are describing sounds like spark knock (pinging). If you replace the fuel filter, 'kit' the carb, but problem … Chevy 350 TBI stumbles on acceleration because of leaky vacuum lines, worn-out plugs, and others that we mentioned above. My 1995 chvey truck tbi stumbles on acceleration and everything else is working properly - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Chevy 350 tbi stumbles on acceleration.
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