Chevy 350 cuts out under load, Chevy Forums FREE technical assistance for your restoration and repair. Most fuel pressure gauge assemblies have a push-button pressure release connected to crappy vinyl tubing. but it runs great when accelerating What are possible issues with SBC 350 engine stalling under load? Noa Mackey SBC BBC Old School Builds. Buy sell trade share knowledge. Jul 12, 2025 · One Big Beautiful Bill Act car loan interest tax deduction lets you deduct up to $10,000 per year in interest on loans for new, U. it idles rough and acts like its running really rich, then when you take it out to drive it, as soon as you step on it to put a load on, it cuts out and backfires. Mar 3, 2023 · In this article, we’ll look at the common reasons why your engine misfires under load, as well as what you need to do to fix the issue. The motor runs pretty good at idle and cruises good as well, but as soon as you stomp on it, it sputters, backfires and misses Timing is about 38* total. Model specific subject matter experts, classified ads and more. Route the tubing so it empties into a drain pan, then push the button while the engine is running. . Nov 3, 2018 · I really need help, this is my only vehicle, and I have to get to work every day. It revs up fine in park and low acceleration but doesn’t like to accelerate when you step into it a bit I’ve change plugs, distributor rotors, distributor cap, esc Aug 27, 2009 · i have a tbi 350 out of a 90 suburban in my jeep. Nov 30, 2011 · The fuel is set for about 4 psi now but I still have a miss at idle and the engine still cuts out on the road, most noticeably when under load like climbing a slight hill, etc. Driving in gears 1-3 are bearable but in 4 and 5 there is little power and the truck surges, stumbles, and shakes awful. This frequency has increased and increased so now Nov 24, 2010 · I have a 91 Silverado K1500 4x4, 5. -assembled vehicles from 2025–2028. Nov 6, 2010 · C3 Tech/Performance - 350 cuts out momentarily under load - My 350 1976 engine is running fine but the other day it did an odd thing: As I was gently accelerating up a steep hill, the engine felt like it stopped for a fraction of a second, it then came back to normal. Apr 9, 2024 · I have a 87 Chevy 350 that was running good but latley it has been stumbling and backfiring when you step on the throttle heavy. My vacuum remains strong at 22-23 inches, very steady at idle with only slight movement of needle when it misses randomly. This simulates higher fuel demand if you can't check fuel pressure on the highway. We would like to show you a description here but the site won’t allow us. Symptoms: Stumbling/missing (cant really tell weather its a fuel issue, or a spark issue) under high load/ higher rpm. all original harness came out of the suburban and straight into my buggy. All started about a week or so into really cold temps, not sure if that could have anything Nov 8, 2009 · The motor is a fresh 350 mild street motor, edelbrock carb, msd dist etcall shoved in an s-10. S. See the full list of qualifying vehicles and key requirements. any Jan 15, 2025 · Verify fuel pressure at prime, at idle, and under load. The carb came off my other race car Oct 7, 2018 · I have a rough idle, stumble under load, and I believe a misfire somewhere. 7L 350, TBI, Auto, 220Kmiles Its been a great truck, for the most part it runs and drives great! but at low idle or low rpm's it missis,sputters,surges and if im just barely giving it any gas it almost wants to stall out.


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