95 chevy 350 tbi rough idle, The truck has a NV3500 so the whole truck would surge. This started as a surging while driving at constant rpms. Check RPM: If the vibration increases with RPM (regardless of speed), focus on the harmonic balancer or internal engine balance. Jul 20, 2014 · 1995 TBI 350 with 214k stumbles a little at idle, otherwise runs great The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board I have a 95 gmc sierra k 1500 350 tbi all the sudden it does a random high idle when you turn it on at stop lights it idles over a 1000 rpm put it in park it's like around 1300 to 1500 rpm I changes the iac tps and map sensors Check Idle: If the vibration is felt only at idle, focus on motor mounts, vacuum leaks, or spark plugs. Recently, I experienced a rough idle and hesitation. Check Acceleration: If the vibration happens under load/acceleration, check the drivetrain, U-joints, or flywheel. Very noticeable in second gear at about 25 mph. It goes away after I drive it for a minute or it warms up to closed loop. Jul 28, 2006 · DFI and ECM - what are signs of a bad ECM? - my car has an interment problem. i already changed the MAP sensor (used one off of an s10 blazer, known Why You Shouldn't Adjust the Idle of your Chevy TBI Ben of all Trades 2. I don't think I'm gonna put a valve in the return line to test fuel pressure like most do, just gonna feel it. tach all over the place, poor idle, jerky operation. I replaced IAC, CTS, TPS, ETS, EGR valve, EGR solenoid, FPR, Injectors The GM TBI (Throttle Body Injection) system uses a pair of low pressure fuel injectors mounted above the throttle body opening. I should know that fuel pressure is too high because it'll idle rough right? Jul 1, 2011 · Hey guys. So far I have -replaced the IAC 4 different times (although none of the motors were actually frozen and they all moved) There are a number of potential reasons why TBI systems experience idle surges and stumble. 7L 350TBI erratic idle and stalling at low RPMs Jump to Latest 16K views 10 replies 4 participants last post by PlaywithTBI Sep 3, 2019 B Found 4 result (s) for your search 1995 Chevy K1500 203K mi. this whole thing has me stumped. So I have a 95 TBI 350 with about 190K miles on it. It Detailed repair manual for the 1995 Chevrolet C 1500 Truck 2WD V8-350 5. I have a 95 k1500 with a 350 tbi engine, and I have been trying to troubleshoot a high idle for weeks now. it sometimes will act up really bad. The surge is like a whup-whup-whup-whup until I add throttle and rev it out. 350 TBI/auto Rough idle & hesitating Everything was good until I stopped at a red light and Mechanic's Assistant chat Customer: I've got a 1995 Chevy K1500 with 203K miles and a 350 TBI/auto. Among the most typical are: Nov 29, 2004 · TBI is surging with steady part throttle in open loop when cold. mind you this car only acts up when it wants to. Feb 15, 2016 · I have been pulling what hair I have left out over this issue. 31K subscribers Subscribed Will 14psi cause premature pump failure? Can i go a bit higher even? Gonna try the ultimate TBI mods and stick a quarter under the fuel pressure regulator spring. Aug 12, 2019 · 1995 C1500 5. Especially when it's been driven - shut down for an hour - and restarted. 7L VIN K TBI. Unlike a port fuel injection system, that sprays fuel into the intake manifold runner just above the intake valve, the injectors in this system spray fuel directly into the throttle body .
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