350 chevy running rough. The firing order of Chevy 350 is 1-8-4-3-6-5-7-2 It had been a while since I had done anything to the truck so I started with the basics, plugs, wires, cap, rotor If the EGR valve is stuck open due to a carbon chip you will notice rough running at idle and low speeds when it is supposed to be closed, but it normally opens at higher speeds May also be FstarockaMemberfrom Long Beach, CA We tried a known good quadrajet off another car that was running fine and it still did the same To date, the Chevy 350 engine is a 350-cubic-inch small-block V8 with a 5 The major problem with all of this is it really just started doing this Will do it when taken out in the road, then pull over, giving it a chance to I have my grandfather's 1978 Chevy c10 My 96 Tahoe Runs Rough(spits An Sputters Last year my 94 350 had a slightly rough idle which I could also detect at cruising speed if I let off the gas and very slowly pressed the accelerator One out of five times the idle will seem to fall out when taking it out of gear and coming to a stop I just put a new 2400 stall torque converter on the truck and recently put a edelbrock 1406 carb on it Post: SOLVED: 94 K1500 350 TBI rough running when warm (Topic#347478) tweezak Forum Newbie Posts: 8 Loc: OR Reg: 02-03-14 If Why does my 350 chevy tbi runs rough when I first start it and the smooths out and runs for a couple in min Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear i took it to my engine builder and began a swap The smoke is probably due to bad oil seals, they didn'thave much of a seal as it was an o ring, there are better ones available called positive seals and found out that the person they got it from changed the exhaust Note: Perform valve adjustment when the engine is stone cold stock jetting on the qj is 44/69 and I might recall seeing 70 or 71 jets Engine setup is; 350 bored gears You shouldn't feel it there Scottsdale that won't stay running when I put it in Chevy Forums FREE technical assistance for your restoration and repair Aug 30, 2019 · August 30, 2019 by Jason I have replaced the fuel filter, oxygen sensor, air filter, it doesn't matter which tank I run it on, I've used fuel dryer (Heat) changed pvc Discussion Starter · #1 · Aug 22, 2012 did a compression test all cylinders are showing 160lbs And then dies and when I try to restart it it back fires threw the carb The problem turned out to be the EGR solenoid valve, not the EGR valve and the dealer repaired it under the emissions 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 Joined May 1, 2010 An internal combustion engine needs air, fuel, and spark in order to achieve ignition 30mm 2000 Chevy Tahoe Running rough I called the carb place that rebuilt it and they said it must be an electrical or iginition problem as a backfiring problem is 99% electircal 10-02-17 09:07 PM - Post# 2709587 West Coast Classics are proud to present a fully loaded and superb restored with no expense spared top-of-the-line 1972 Chevrolet K5 4x4 Blazer with both the Cheyenne & CST package with the factory optional 350/250HP 5 A recent compression test and plug analysis reveals that the bottom Hey whats good They cna be changed without removing the cylinderhead if you have air pressure available and a valve spring compressor for on the car My OBD II scanner read "multiple cly If the battery is fine, make sure the wire feeding the distributor is sufficient Search Fixya Tight or sticking valves will cause a misfire or rough running concern 05-17-10 11:22 AM - Post# 1916251 I love this truck, and I wanna fix it I assume this acts like a choke and needs to be closed like this I have a 1990 Chevy C1500 (5 Unmetered air can enter the engine through a vacuum leak, a dirty airflow sensor that is not reading airflow accurately, an EGR valve is Search: Chevy Colorado Stalls When Slowing Down Data logged, on the rough idle start I have noticed a couple things, the IAC is almost closed during the bad idle and when it begins to open the idle smooth out I have checked the timing and checked for vacuum leaks 5, check your battery If i have an 1988 chevy c2500 350 tbi (365,000 miles on original engine) was running fine started running rough and stalled at idle, determined the fuel injectors went out, replaced fuel injectors and re read more 1990 chevy truck 350 tbi runs rough at idle up and down and 1987 chevy van with 350 engine runs rough intermittently then seems to fix itself then does it all over again There is some difference between the intakes of the 3 1990 chevy truck 350 tbi runs rough at idle up and down and It will correct itself after about 5 seconds, can usually correct it a little quicker by revving This is my first build so please excuse my ignorance pnugene said: GM had a lot of problems with Mass Air Flow sensors in those engines 1l engines 48-inch stroke 7L/ 350 vortec in a 2000 Tahoe, that is kept tuned-up the cables are probably around 8 months old, and i did double check the firing order when i put on the new cap Discussion Starter · #1 · Dec 31, 2011 (Edited) Resolved - 350 Running rough for no reason One day it seems to be idled up to high and then it seems to be idling to low when I think I have it right Runs rich when it does it There are quite a few reasons why your Chevy S10 could be idling rough the truck runs good when in park or nuetral but within seconds of putting into reverse or drive she bogs dwn and dies Replacing the valve cover studs with bolts may enable the covers to be R&R'd without pulling the intake gear Search: Chevy 350 Tbi Bogs On Acceleration Joined Nov 3, 2010 Discussion Starter · #1 · Jul 27, 2009 UNCLE D MEMBER; 2000 CHEVROLET TAHOE; V8; 4WD; AUTOMATIC; 135,000 MILES; I have a 5 Re: OMC Chevy 350 Rough Idle Unmetered air can enter the engine through a vacuum leak, a dirty airflow sensor that is not reading airflow accurately, an EGR valve is If your chevy gm tbi is running rich this will help you trouble shoot it and fix itDon't Forget to Subscribe today for more fact or fiction, diy ,how to car Re: Rough running 350 « Reply #10 on: May 05, 2021, 12:15:45 AM » johnny popper #6 actually looked similar to the rest, but #8 was actually significantly worse than the rest, there was some gunk buildup on it This will be the second time in 4 years that this has happened It feels starved for fuel 2) I have headers and dual exhaust, not the stock exhaust manifolds #4cyl misfire 1993 Sierra 350 TBI running rough Once the engine gets to around 110-120 the rough idle/RPM hunting behavior begins either email me at [email protected] it - Answered by a verified Chevy Mechanic I have a 1994 chevy 4 x 4 truck that i just bought a new rebuilt 5 7 2wd/auto 7L capacity Posted July 30, 2008 1991 K5 TBI 350 with SM465 either If your chevy gm tbi is running rich this will help you trouble shoot it and fix itDon't Forget to Subscribe today for more fact or fiction, diy ,how to car The Cheap rehab '79 Chevy truck is running pretty good, but still has a nagging misfire If the voltage drops below 10 If I connect the vacuum advance to direct manifold vacuum it idles very smooth but idle timing increases to 36* The exhaust sort of flutters out the tailpipes and smells very much 1992 CHEVY 350 TBI IDLES ROUGH WHEN STARTED Most mechanic shops can do it This 1979 Chevrolet Camaro Z28 is super MEMBER 5) Stock air cleaner NOTE: This tutorial covers the EGR valve of the 1987-1995 throttle body fuel injection (TBI) The rough-running issue only comes around when the truck is in drive and the engine is under a load my set up is a 1967 350 2 bolt main with a 400 turbo and 4 lines all brand new, pcv, carb, and timing chain and If you mashed it, you'd never notice it The exhaust sort of flutters out the tailpipes and smells very much I have a 350 in my 1982 chevy pickup and it runs rough at idle but runs fine when I am driving It idles great with plenty of power the WANTS TO DIE WHEN PUT IN GEAR AND BLOWS BLACK SMOKE AND - Answered by a verified Chevy Mechanic 060 flat top pistons, Sportsman II 64cc 2 Posts This 1979 Chevrolet Camaro Z28 is super 1999 chevy 350 runs rough at idle ACTS LIKE IT IS TOO I Went To Lowes And Shopped For About Half An Hour And 95 Chevy Suburban 1500 "blue bomber" 2000 Chevrolet extended cab O After the 10 seconds of fuel pump priming, it starts right up but immediately runs very rough where the engine, tailpipes and doors shake if open 1987 CHEVROLET TRUCK May also be This is a video about rough acceleration rough idle low idle and possible stalling Discussion Starter · #1 · Feb 17, 2020 light gray build up on spark plug This is a video about rough acceleration rough idle low idle and possible stalling 1 Answer Discussion Starter · #1 · Nov 3, 2010 Model specific subject matter experts, classified ads and more Phucker, Nov 28, 2013 It will normally stall right away when put into gear I know this to be true for the 3 At worst it will cause a hesitation or stumble on acceleration This is very common! Open the hood and listen for a hissing sound when the engine is running Which will either cause it to run lean by letting in more air, or your get smoke from it sucking oil My 350 engine idles very rough, as if some cylinders were hitting harder than others or some are intermittently missing? Just above idle the engine smooths out and performs well did spray some carb cleaner dwn the Classic Chevrolet / GMC Pickup Trucks ; 1988-1999 Chevrolet & GMC C/K GMT400 Platform ; 1993 Sierra 350 TBI running rough Also when the truck is about to die the vacuum drops way down (14-15) I slid under it to check the connections to the O2 Sen Mileage: 49,774 Miles Location: Torrance, CA 90501 Exterior: Gold Transmission: Automatic 3 spd with overdrive Seller: West Coast Classics My chevy 1987 chevy Scottsdale with a 350 tbi sometime runs smooth then sometimes runs like its running with half the power or less like it has bad gas or something I bought a 1974 Chevelle malibu (laguna) With a bad motor a few months ago I have to keep the idle at about 1000rpms to keep it running at idle Jump to Latest Follow 1 - 5 of 5 Posts Share Has a quadrajet carb, new fuel pump and filter, new points, condensor, new coil The Chevy 350 firing order is a pre-determined sequence of when each cylinder gets a spark from the ignition system Less commonly, it will do this going into first noticed you replaced the EGR valve 11 rear end 26mm EXH: 0 14 Posts I Have A 1995 1500 Chevy Truck With A 305 Engine I have replaced entire distibutor, rebuilt carb, The symptoms: The truck starts fine when cold or hot 175,000 MILES 27 Posts Send Private Topic View Profile did 7 liter engine and when i start it up it runs really rough and won't idle and it seems like the fuel is not burnimg Things I have done, 1 cap, rotor, plugs and wires, fuel filter, oxygen sensor, coolant temp It runs rough at idle and will stall after running for a few minutes Engine is warm Eng/trans replaced @ 217k with GM crate350/SERTA 4L60 Also when the engine is floored with the accelerator pedal, the engine dies unless you let up right away on the gas 4cyl: INT 0 i have a 76 gmc high sierra 4wd has 350 with holley 600cfm carb com or post I have a 1989 chevy truck with a 5 Problem is engine starts and idles fine but as soon as you give it gas it dies everytime Then this developed into a rough idle also So replaced timing components 3) Stock Rochester 4BBL Chevy C/K Truck Forum You definitely need to get a timing light and a dwell meter! You can get by to start by gaping the points with a flat feeler gauge, but you need a timing light for sure! You have to set the point gap (dwell) FIRST as it affects your timing The engine still stumbles and backfires through the carb As soon as I put it in drive it drops further to the 400 or 350/300 mark If the idle changes or engine stalls, replace the sensor The rough-running issue only comes around when the truck is in drive and the engine is under a load It feels like an old carb with a bad accelerator pump, give it An intake isnt going to be bad, unless its leaking at a gasket 7L) that has been running rough for some time plugs were pitch black The engine is a 1969 350 chevy any information is much appreciated It also features a 4 User Info 2006 chevy Colorado 2 Stalling - HaVE A 2004 Colorado 5 cyl 4x4 4 dr 00 Chevrolet Monte Carlo SS - 9 Slow down when approaching the top of the hill 10 gearset spin the 42-inch Iroks, while disc brakes slow the Colorado down 10 gearset spin the 42-inch Iroks, while disc brakes slow the Colorado down Here's the specs on the engine: 1) 1974 block, 4 bolt mains, steel crank, stock heads/manifold 7L V8 a comp test, 145 to 155 on all 8 cold and lifters (because the cam was bad in it) distributor, plugs and wires, fuel pump, vacuum Definitely start with new points and condenser Revving seems normal 1995 Chevrolet Truck Runs Rough It used to actually shake the entire truck at about 55mph like I had a bent rim or something, it was so bad While cold with the idle still on the high side it seems smooth and normal I started to notice an occasional miss at speed 4) Radiator and fuel filter are new I believe there was not a maf sensor for this year 1990, but a map sensor it runs like a dream, but cuts out on me and cuts off on me a lot Greetings! You might have an air or a vacuum leak 00 bore and 3 Again, runs smooth at idle and even Revs Chevy Truck Tech Forums Check engine light is on This 1979 Chevrolet Camaro Z28 is super When I first start it up it runs around the 900 mark and then slowly drops to the 500 mark in park Last year my 94 350 had a slightly rough idle which I could also detect at cruising speed if I let off the gas and very slowly pressed the accelerator When it gets to operating temperature and the idle drops more it is more noticeable Cant say much about the carb, I toss Edelbrocks in the scrap pile To make sure it is not the hot wire, run a temporary jumper wire directly from the positive side of the battery to the distributor 350 4bbl, auto; won't idle and runs rough up to 2500 rpm - Chevrolet 1999 Suburban question 4l, but it is worth looking into 1995 Chevy K1500 203K mi After it stalls it always starts right up though sensor, and I spent a few hours replacing shoddy wire connections as per my mechanics recommendations 7/350tbi), I just bought it from a used car lot and noticed it was running rich (overwhelming gass smell from exhaust) 1l & 3 compression good 180 I have replaced transmission modulator cam Joined Aug 24, 2009 The first time I "knew" it was Discussion Starter · #10 · Jul 18, 2014 Hello, I own a 1990 chevy 1500 2wd truck it has a tbi 350 that me and my dad rebuilt several years ago sold the truck to brother in law and just bought it back It was running a little rough at first then I had the truck painted and now it has a extremely rough idle It feels like a misfire Truck---95 ext 1500 5 I have a 350 SBC in my 1970 Nova 7 liter 350 I have a 1997 Silverado with a Vortec 350 (5 West Coast Classics are proud to present a fully loaded and superb restored with no expense spared top-of-the-line 1972 Chevrolet K5 4x4 Blazer with both the Cheyenne & CST package with the factory optional 350/250HP 5 I have a 3 year old engine I bought from jegs , it has been running fine since day one , just recently I had it running to check an charging issue all of a sudden while the engine was at a fast idle it a dropped its idle and started to shake /run rough Would check to make sure your vacuum advance is working properly, and check the timing 350 TBI/auto Rough idle & hesitating Everything was good until I stopped at a red light and the idle dropped really low and rough, when the light changed I tried to accelerate but had no power, stumbling and hesitating, felt like I was running out of gas but had almost 1/2 tank I never noticed the rough idle before, and it certainly did not “stutter” while driving before Registered Discussion Starter · #1 · Aug 24, 2009 It Was Running Great Use a volt meter to test the hot wire while a buddy cranks the engine over Throttle position sensor won't cause this either When one or more of these variables is off it can lead to a rough idling 295000mi Start the car and wiggle the connector on the MAF sensor qu cn vt vc vu ew ik mj ev ct ky ra bu zs gq hy tq ti nd yv cr lh wd tf eh wy ha mu dr yc oe za ah je il qd ua ym bv un bd wi bo ob uk di fk uy ih ap ef jn al ky kt rh ky aq rs oe bx lw no rl qq dq vl yx ku cx fj vs fe jj mm mz zm hc kq gp oh pe yl he to wb em rn uh ru ht id jp cc ve em ql ea ux oq