Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. The problem I'm having is that once I put my truck in drive or reverse it boggs the motor down and dies.. Recently my truck has began to die when coming back down to idle. Rpm drops down to 2000 and I have to sit there and slowly run the truck up to 2500 rpm. Ran great for about 70 miles. Poor idling and loud engines usually go hand-in-hand. Average repair cost is $590 at 155,150 miles. I do regular maintenance and have never had a serious problem. In looking at the fuel injection, I can see the injectors stop injecting fuel. But I have no power and feels like no passing gear. I have an 1994 GMC Sierra 5.7L 4X4. Remove the wing nut on top of the air cleaner and lift the air cleaner off the throttle body to access the vacuum lines. I have a 1994 Chevy S10 Blazer with 4.3 Vortec V6 (Throttle Body). Also for: 1994 s-10 pickup regular cab, 1994 s-10 pickup club coupe, 1994 s-10 pickup extended cab. it ran choppy like it had a big cam in it. In this case study, I'll show you exactly what I did to get to the bottom of a hard to troubleshoot rough idle condition. Rough idle while in gear... May 13 2012, 8:49pm. i … 1995 Chev S10 4.3L V6 rough idle and under power truck runs rough most of the time at idle and when cold, can lunge - Chevrolet 1994 S-10 Blazer question It runs like a top at 60mph but as soon as you let off … '94 S-10 4.3 Stumbles on acceleration, rough running. wont idle. Turned out to be … Out of the blue a couple of months ago it started running like crap. Really bad gas mileage. runs fine above 2000 rpm, but as i slowly drop down to idle the needle on the tach bounces like the motor is shuting off but then idles rough … read more It has a rough idle and a serious miss when I am on the road. Examples of this are staling, lurching and poor acceleration. I have done the following: Pulled codes 22(TPS), 32(EGR), and 34(MAF). NOTE: This tutorial covers the EGR valve of the 1987-1995 throttle body fuel injection (TBI) system of the 4.3L, 5.0L, and 5.7L GM engines. It has a 4.3 liter engine. › Chevrolet S-10. I have a 1994 Chevy S10 Blazer and after a trip i arrived ... ignition module, idler air control valve, o2 sensor, mass air flow sensor, checked fly wheel it good. ... 2004 Chevy Blazer w 200K that bogs down eventually quits going up gradual long hills only in … I Have a 90 Euro lumina 3.1 it idles rough in and out of park. Rough idle after shifting into gear ,also I have no passing gear power. It's a 1991 Chevy S10, 2WD P/U, 2.5L I4 engine with around 185,000 miles on it. 1994 S-10 Pickup automobile pdf manual download. I pulled out from a stop sign crossing 4 lanes of traffic and it backfired and almost quit on me! Cleaned the Mass air flow sensor, new plugs, wires, distributor cap, rotor and fuel filter. 0. helotaktiks Posts: 3. floods at start up poor gpm stutters after shifting then bogs down while accelerating, smooths out after letting up clatter while accelerating like it has low octane rough idle when sitting for awhile, sometimes idle will rev very high after shifting The turn signals on my 1993 Chevy S-10 … '94 t-10 blazer it has a rough idle and it also will race up to around 2000 rpms and drops down around the normal idle speed and almost stalls then raises high again. ... i had a S10 that had the same problem. Any suggestions? Although a rebuilt engine had been installed a year before, and all of the wiring and vacuum hoses looked as if they were in factory condition, I took nothing for granted. The IAC (Idle Air Control) valve utilizes the on-board computer to fine tune the idle speed according to engine conditions. I just had a tune-up. Just changed the EGR. A week or 2 ago the truck started missing and surging anywhere but idle or wot. May be a little low cause of the rough idle, but what your looking for Is for it to drop slowly to well below specs. idled fine at first then after a few starts it began to idle rough again. overall, the 4.3 vortec is a very strong and reliable motor, proven by it being the longest lasting production vortec engine. I have a 1994 S10 Blazer, 4 door, 4x4 with the Vortec engine (W). Chevy S10 - GMC S15 and Sonoma Stalling/Dying Problems. View and Download Chevrolet 1994 S-10 Pickup owner's manual online. 1994 S-10 4x4 pickup, 4.3L, VIN W. 215,000 on the truck, 40 or so on a GM crate engine. Idles fine, on the road it is running very rough. I have ran the gas empty and refilled but the problem still persists. Hopefully, the check engine light is on. Asked by Joseph Apr 28, 2008 at 08:38 PM about the 1997 Chevrolet S-10 LS RWD Question type: Maintenance & Repair Anyone know why my s10 is idiling very VERY rough and shakes pretty bad at about 60-70 mph the U joints are new an the tires the last time i … Re: 95 Chevy S-10 4.3L TBI - Idle troubles Interesting thread. 1994 Chevrolet S10 Blazer 4.3L Excessive Emissions, Poor Idle Quality, Surge, BLACK SMOKE Posted to GM Driveability on 8/11/2006 52 Replies HI ALL History: Replace fuel pump (for long cold start) back in first part of July this year. It can tell you a lot about what is going on with your S10. 0 1. I have a 1994 Chevy S10 Blazer that has run pretty well for me. 1994 Chevy S10 4 3 Vortec Tbi Rough Idle Problem Youtube A common cause for a misfire or rough idle on the vortec 4.3 engine. When I smash on the gas rpm goes up to 3000 , and it bogs down, back fires. Chevy vortec 4300 (4.3l v6) engine reliability. Rough idle while in gear... Chevy Truck Forum | Silverado Sierra GMC Truck Forums. This checks the catalyst converter it could be clogged. Chevrolet S10 Idle Air Control Valve Your Chevrolet S-10 takes on rough roads with ease, but a rough-sounding idle is a sign of a possible problem with your Chevrolet S-10 idle air control valve. He had a blown head gasket between cylinder 4 and 6 that has been fixed. Chevrolet S10 4x4: 2000 s10 4.3 has rough idle check engine 2000 s10 4.3 has rough idle check engine light on code umm well it was code for misfire cyl 3 so i did plugs wires cap rotor no change still rough idle cleared code light came back on this time random … March 2006 edited April 2018 in Chevrolet. It has a rough idle, hesitates at takeoff, the muffler is putting, and the brakes are stiff. 1994 CHEVROLET S-10; 14,500 MILES; 4.3 Vortec, 60,000 on engine, just changed spider injection and nut kit, spark plugs, scanned it and shows no codes, starts fine, runs good until its warmed up, runs rough at idle after warmed up, accelerates fine, doesn't miss … And like I said my Chevy 4.3 drove till 415,573 miles on it and it was still running just started to be rough idle so I scraped it and got another 4.3 Chevy 1500 love it. i pulled the EGR and looked at the valve and seen it was broken in half. 1994 Chevrolet S10 Blazer Tahoe 4.3L Poor Idle Quality, Misfire Posted to GM Driveability on 6/23/2006 27 Replies This is one of my personal vehicals, and it is haveing a problem at idle, it runs very rough, shakes, and is intermittetly missing at idle. I have been reading it even though I have a 1994 S10 p/u with engine code W (CPI) that has a different fuel injector system. s100614 Posts: 3. bigj-dog. My sons 03 S-10 is running rough at idle. It's the Iron Duke engine, a throttle ... and a really rough idle. 1994 Chevrolet S10 Blazer 4.3l CPI 4x4 Missing/running rough/rough idle/engine fan running constantly- After problem began owner replaced plugs, wires, rotor and cap with no change prior to bringing vehicle to me to look at, owner said he thought #1 wasnt firing. Ever since I put a complete fuel system cleaner additive in my tank it has been running bad. 1994 s10 with the 4.3 vortec injection. 12-13-2010, 01:06 PM. All the sensors have the proper voltage and/or numbers. Rough idle. My 1994 Chevy S-10 with the W 4.3L V-6 engine has a rough idle problem. The 1995 Chevrolet Blazer has 15 problems reported for idles roughly, stalls when stopped. 1994 Chevrolet S-10 - Where is fuel pressure regulator valve located on 1994 Chevy s10, v6, 4.3L- question about Cars & Trucks ... Im smelling fuel in the oil,rough idle, and horrible fuel mileage. The fuel trims are showing rich because it is subtracting fuel. It will start, idle rough, I smell gas (almost like too much), then min or so ... i have a 1992 chevy s10 blazer with the 4.3 vortec. If you suspect that the EGR valve is behind your engine's rough idle condition, this tutorial will help you to troubleshoot it with 2 simple tests. The part helps your truck maintain a consistent idle even as the engine takes on extra work. A common complaint with the Chevy 4.3 engine is that it doesn't idle well, it's loud and makes awkward noises. But these are just my opinions. Chevy S10 Rough Idle Causes. it has plenty of power, only runs porrly at idle. You can either go to the local parts store and ask them to scan the vehicle for you, or you can do this yourself. a leaky EGR will cause the rough idle. Order EGR Valve for your 1994 Chevrolet S10 and pick it up in store—make your purchase, find a store near you, and get directions. But I did have a similar problem once upon a time. Check here for special coupons and promotions. Location: Main Index » Forum Index » Trucks-Vans-SUV » 88-98 Fullsize Trucks, Vans, Suburbans, Blazers, Tahoes » 94 Chevy 1500 fluctuating idle FusionBB™ Version 2.1 ©2003-2006 InteractivePHP, Inc. Step 1. In the process of ‘spinning this yarn’, you'll see what the overall diagnostic strategy was and what testing techniques I used to get to the bottom of the issue causing the misfire/rough idle condition (on my neighbor's 1995 Chevy Blazer with a Vortec 4.3L). Several years ago, a retired school teacher brought in a 1994 Chevrolet S-10 Blazer that had developed an intermittent rough idle condition. What I have 93 S-10 vine code R 2.3 litre 5 spd. Car (or truck or mini-van) seems to run ok above 30 miles and hour but once you come to an idle, the engine barely stays running. Lack of power as you accelerate the vehicle down the road. midwest mobile mechanix. I have been having a problem with it idling rough, rough running at low rpm's and stalling completely when I have to come to a stop. once you put it under a load, the miss goes away. ... How to Repair a Chevy 2.4L Knock Sensor. I have a 1994 Chevy S10.