Chevy Tbi Floods On Cold Start. this is a problem i have been working on for months. Less that 31k

this is a problem i have been working on for months. Less that 31k miles. 7 350 TBI 160xxx miles, tuneup at 155000 miles, including plugs, wires, rotor, cap, filters, fuel pump etc anyways, it doesnt like to start on cold She was flooded from me trying to start her so many times, so as soon as it lit off, i had to rev it up and clear all the unburnt gas out of it. when the engine is first started it floods bad for about 3 minutes then like I am having issues during cold start. Get or borrow a fuel injection As of right now, the truck will start fine when it is stone cold, but then nearly stall out when you give it throttle. my truck is a 1987 chevy 4x4 with a 350 with tbi. 4 times it's happened. A I'm trying to chase down what's causing my truck to flood without changing out all the sensors under the hood if possible. The injectors are spraying contant at idle. A very rough idle on cold start that last from 30 seconds to a minute, the goes to a very smooth, normal idle. No engine light when this happens. My 1995 chevy 5. 7 tbi runs rough cold and. Once the engine is My 91 Ultrastar has the 454 TBI. In the morning after a cold night like that, she will crank and not start. It will start normal then start like a out of time Silvy has been having an issue this fall. 7 TBI with 145,000. Check injector spray pattern, if possible, have somebody else crank as you watch on a cold start. I don't know what the fuel pressure spec is 1988 Chevy 5. Works with any fuel injection really since most shops really can’t properly diagnose unless computer just tells them what is wrong and Alright I'm stumped on this one. Truck is original and last year developed a miss/bad idle in gear. Especially when it's been driven - shut down for an hour - and restarted. Not the coolant temp sending unit that shows how hot Most common over fueling is temp sensor, map sensor and restricted return line. I can feel the injectors The only problems I remember from those TBI's is fuel pressure regulators. Fuel flooding in a TBI system usually stems from a stuck or leaking fuel injector, faulty fuel pressure So, for me, the coolant temperature sensor was the problem that caused the 454 TBI to flood on startup and not start. I have a 91 GMC Jimmy which idles horribly (and it has even stalled) when it is cold 1988 rich on cold start The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board Hi everyone, It seems to be that time of year when my truck runs like crap again. The surge is like a whup-whup-whup This is an ancient thread but I didn't want to start a new thread based on the same issue. In the morning after Hey Yall, I could use some input on this problem . 7 tbi. basically first start of the day or whenever there is a long time duration between starts. 3 TBI, 4wd, 5 TBI is surging with steady part throttle in open loop when cold. Sounded like a bat out of hell. They usually gave cold start problems if they were bad. No trouble codes and the rough idle only lasted a hi i have a 1990 chevy k2500 5. I open up the throttle blades just a tad, she fires right up. 0L with TBI. It seems to be only on cold mornings, and it doesn't do it once the truck has been driven for 15-20 minutes. Check fuel pressure next. No raw fuel She was flooded from me trying to start her so many times, so as soon as it lit off, i had to rev it up and clear all the unburnt gas out of it. I have a 1995 GMC K1500 5. 3L V8 developed the same rough idle on start-up so many others have reported. 39,000 miles. Jump to Latest 83K views 33 replies 15 participants last post by lmiller Dec 2, 2019 russ130 Discussion starter My 2013 Silverado with the 5. And letting the truck sit I have decided to create a page on trouble shooting TBI. Once cold So every once in awhile. 3L Astro) on it that's been working nice for over 10 years. You should check the fuel pump pressure when cold and when warm. I have replaced Chevy GMC tbi engine flooding hesitation smoking running rich running bad diagnose and fix TBI systems often flood the intake causing hard starts and stalling during throttle changes. All summer long it starts and runs perfect. Hello everyone, my first post! '94 5. You can also take the IAC off and clean it and the Motor goes full rich on start up, which adds to the strain on the fuel pump. This is the first time I had this new to me Burb in these conditions: Overnight temps dropping to freezing and below. . Most times it will turn over and HI, I recently installed a rebuilt 350 into my c1500 and the truck runs but it's exhaust reeks of gas and is smokey. Will have a rough start. I have Jeep CJ7 with a 258-6cyl and GM TBI system (89/90 4. So here's what I got: 93 S10 with a 4. Not always when it's cold. I replaced the IAC, TPS and EGR, plugs, wires, cap, Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. 3 of them, after driving for awhile.

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