No problem with the motor that I'm aware of. Why all the interest in the 3.4? Is there problems with using the 4.3? I havGood condition for the year with 154,126 original miles. Now then I'm entertaining the idea of converting a rubber bumper car using a 4.3 litre Vortec. As a previous owner of a 1967 red BGT I have fond memories of it.
93 Jimmy 4.3 Vortec idle problem. So I took off the upper intake, and found that the Nut kit (the fuel lines running into the injectoer), were leaking badly and dumping fuel into the. After reading around the internet I figured it was the Spider (CPI injector). I got it running very poorly back fireing thrugh the exsaust lightly (poping), etc. Hey Gang, I just purchased a 1995 S10 Blazer with the Vortec 4.3 V6 the other day. Needs new brake line (s), exhaust pipe and steering box.
using_IDLE: Set this to True if you regularly work with IDLE and its -n switch (“no subprocess”). The quick fix it to use a screened EGR gasket available at most any parts store these days. On the 4.3's it's caused by a partially stuck open EGR valvee. The car will fire sometimes, other times.
4.3 Vortec Engine Problems Manual Fuel System
Idle Air Control (IAC) Valve Choose for Me to Minimize Cost Choose for Me to Minimize Cost Related Parts Air Intake / Charge Temperature Sensor Emission Repair Manual Fuel System Repair Manual Idle Air Control (IAC) Valve Connector Idle Speed Control Motor Connector Throttle Position Sensor (TPS) It should not be used to indicate that an operator or method is not meant to be supported at all – in that case either leave the operator / method undefined or, if a subclass, set it to None. 4.3 V6 Vortec L35 IAC control on S10/Sonoma/Blazer Been chatting over on the S10 forums about the IAC control algorithm trying to figure out what has gone awry - several other users report having the same problem and we have yet to find a solution. There can be a turtle.cfg file in the directory where turtle is stored and an additional one in the current working directory.
Our 4.3 liter 262 Vortec Long Block Crate Engine is on sale. Poor idling and loud engines usually go hand-in-hand. Examples of this are staling, lurching and poor acceleration.
2003 chevy s10 4.3 vortec, while driving the rpms jump While im driving anywhere from 45-65 mph and keeping a steady foot, the engine accelerates itself and the RPMs jump over and over. It sometimes stalls at the bottom, but fires right back up. The idle throttles from 500RPM to about 1500RPM and repeats the cycle. When I turn the truck over, fires right up, and then goes into a sick idle cycle. Bad idle on my 1995 GMC Jimmy.
On the 4.3's it's caused by a partially stuck open EGR valvee. The same year TBI's were also Vortec motors. Vortec was thrown around the early 4.3's as being CMFI motor, but truly Vortec referred to the head design, not the injection system. If you motor is a roughly 1995 and back motor, then yes, the intake and everything will swap with no problem. Jump to Latest Follow 1 - 6 of 6 Posts. 03 8100 vortec ROUGH idle problem.
Once it warms up to normal operating temperature, it revs higher at idle. It idles like it should when the engine is cold. I'm getting a high idle on the Vortec 350 in my Cruiser.
I am not getting as good of fuel economy as I think I should. The RPM on my engine does not come down when I come to an idle. Well I broke down and took it to a mechanic shop yeste. I would hesitate while running kind of like a half second about every 10 seconds, take off was pitiful and as far a jumping into the passing gear to haul butt you could forget that. Ive been battling a problem recently with my 4.3l vortec v6. GM 4.3L Turbo Kit Hot Parts T3 Cast 4.3 GMC Chevy Turbocharger V6 Wastegate Oil 4.6 out of 5 stars 5 KIPA Fuel Injectors for GMC Savana Sierra Safari Express Astro 4.3L Vortec Engines, Replace OE Number 217-1516 217-3028 FJ10565 12568332A 12568332
The tach read 0 yes zero and below, llights are dim and driving my tach reads normal untill i slow down the the problem reoccurs. hey my 03 silverado 5.3 v8 gas has a very rough idle, and stalls at low manuver speeds like turning at low speed or backing up. My engine stalls or almost stalls when I come down to an. There is a large “sucking” sound coming from the throttle body when it is warmed up.
Engine knock occurs when the fuel burns unevenly and out of sync with the engine cycles. The pockets burn in even timing, in sync with engine cycles. In a properly functioning engine, fuel burns in even pockets instead of all at once. The 4.3 Vortec engines made from 1996-2002 (L35 and LF6) have been reported to have engine knock problems.
Because of this, it has become a very popular swap. The Chevrolet L31 5.7L Vortec cylinder head is the best flowing production head Chevy has made for the Gen I SBC engine to date. Jeep Cherokee Sport Car Shaking Problems Conditions and Diseases Pontiac Heartburn Chevy Blazer. Answer timing 95 4.3 vortec Chevy blazerTiming is non adjustable, period. The project started in January 2005 and the boat finally launched in June 2009.
My problem is that my cpu runs at 3.7ghz when there is a heavy load while when I'm idle it runs at 4.3ghz. Hello there I am back with a new thread. Displacing 4.3 liters in a V6 configuration, the LU3 served as the standard. The 4.3L V6 Vortec LU3 is an engine produced by General Motors for use in full-size light-duty pickup truck and vans.
Idled fine at first then after a few starts it began to idle rough again. Cleaned the Mass air flow sensor, new plugs, wires, distributor cap, rotor and fuel filter. He had a blown head gasket between cylinder 4 and 6 that has been fixed. My sons 03 S-10 is running rough at idle.
The idle throttles from 500RPM to about 1500RPM and repeats the cycle. When I turn the truck over, fires right up, and then goes into a sick idle cycle.
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