• it's rough at idle, but seems like a loss of some power, a little shaky on acceleration.truck ran good all morning, parked it for an hour, and i noticed the difference as soon as i started it and put into drive, ... NO check engine light coming on, I have a obdII scan tool, but don't think it will work with the diesel.•my truck does something similar. it runs fine when i first start it, but soon idles low/rough, but only in gear. when i put it in park or nuetral it idle up but it still lopes. driving down the road it does fine, never sputters or struggles, but once i stop at a light it starts the rough idle. it also seems the longer i sit the worst it gets. •Feb 25, 2011 · Don't remember the exact idle speed spec, I think it's 600 in drive, an eases up a bit in neutral/park. Regardles of the engine condition, the computer will strive to hit the 600, and a good motor will run smooth as silk at that setting, maintaining it with or withour the AC on.

    Rough idle and sputtering feel at low rpms when cold. Once it warmed up, it was fine. So I guess it wasn't carbon build up. Worsening rough idle, continued intermittent sputtering at low rpms when cold, and weird jerky torque spike right at 2500 rpms (primarily noticeable in 1st and 2nd...

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  • Unplug the IAC valve located on the passenger side, rear of the throttle body. Start the engine. Insert a T-30 size Torx driver into the Idle adjustment screw that is located behind the plug removed earlier. Turn the screw to adjust the idle speed to 650 RPM +/- 50 RPM. •Jun 22, 2011 · if you havent already, check the simple things, i would make sure plugs and wires are all good, make sure plugs are all in good shape and gapped to .035, if those all check out, i would look into your timing. i had an 88 with the 5.7 efi in it and i had the same problem, i ended up having to advance the timing on it, which i did just by turning the distributor cap a little bit and listening to ...

    Diagnosing poor idle

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  • 1992 Corvette Zr-1 Owner'S Video - Performance Review. 1984 Corvette Rough Idle At Start-Up And Excessive Exhaust Emissions.•Silverado :: 88 Chevy K1500 - Truck Lacks Power / It Idles Rough Mar 9, 2009. I have an 88 chevy K-1500 4x4 5.7L ... My truck lacks serious power, it idles rough, sometimes wont idle at all, sometimes Truck Idles fine. I have adjusted the timing to tdc, and 4 deg. both ways still runs like crap.. •So for the past few weeks I have been trying to diagnose a rough idle that has developed on my 99 2.7L Auto. While in Drive at a stop light with the brake pressed, my idle speed will drop to around 640RPM and the truck will begin to shake. This is not a violent shake, but enough to make parts of the...

    1993 corvette LT1 42,000 miles rough idle. 1993 corvette LT1 42,000 miles rough idle.

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  • Why the rough idle idle in reverse? Any help would be appreciated. Thanks. I was thinking that the driveshaft support could be problematic, but why only a rough idle in reverse.•1992 6.5 tubo diesel. I have 1990 Corvette 5.7L Automatic, 22000 mile, that runs fine when I get on the gas but surges on slow idle and almost seems like it''s going to stall. When I am sitting at a stop light the RPM's drop 400 and below and it starts to idle rough. If I put it into N while sitting at the light...

    The idle is better than when I bought it, but it is still rough once it warms up and lowers to around 600. Anything off idle is smooth and even the cold idle is fine, but once the rpms come down it gets a lil rough. There is no dummy lights and Im trying to think of something else that could cause this.

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Re: rough idle. The cam or crank sensor is going out when driving at high speeds. I would have those parts check, and have the fuel pressure check , fuel filter 89 corvette quit running found bad ecm and replaced then the comp was bad replaced so now car idles great but will not take gas runs rough and...

P1380 EB (T) CM DTC Detected- Rough Road Data Unusable P1381 Misfire Detected - No EB (T) CM/PCM Serial Data P1415 AIR System Bank 1 P1416 AIR System Bank 2 P1431 Fuel Level Sensor 2 Circuit Performance P1432 Fuel Level Sensor 2 Low Voltage P1433 Fuel Level Sensor 2 High Voltage P1441 Evaporative Emissions (EVAP) System Flow During Non-Purge

My 92 RS idles fine when cold. When warm it occasionally bogs and has stalled I capped the vacuum lines on the intake manifold and the rough idle stopped, but its a 305 TBI V8 engine. on 1992 Camaro. the egr valve does move when you...

Apr 13, 2012 · 1981 F150 4.9L Rough Idle, black smoke Hi, my 81 F-150 has only 35,000 miles on it. It was left sitting for 5-6 years but was able to get it started relatively easily.

Multiple options are available when it comes to second-generation Corvette engines. The original engine can be restored, rebuilt, or replaced. This is where restraint is important. Too much camshaft duration and/ or overlap causes rough idling. Idle quality is especially important for cars with an...

I went thru what I thought was a carb problem with my 71 LT-1. Very rough idle and just a real bear to keep running. But once you got it off idle it ran great. The problem was not the Holley, that I can now rebuild behind my back blindfolded, but low vacuum signel.

2002 3.8L Pontiac GPX (P0172, P0101 and P0103) Hello, I have been having some rough starting, rough idle and stalling issues. I have printed off the P0172 page and started to replace items.

While I'm sitting idle at traffic lights I put the car into neutral. The engine stays idling at about 1000 RPM. However every now and then it drops down to about 500 RPM and then quickly back up to about 1200 then goes slowly down to 1000 and stays there for a bit until I go again or it drops again.

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Feb 25, 2011 · Don't remember the exact idle speed spec, I think it's 600 in drive, an eases up a bit in neutral/park. Regardles of the engine condition, the computer will strive to hit the 600, and a good motor will run smooth as silk at that setting, maintaining it with or withour the AC on.

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We'll be walking you through the process on both the 1992-1995 Honda Civic D15, D16Z6 engine as well as the 1996-2000 Honda Civic D16Y8 engine. Before you start our guide, it's good to know the components that help maintain your idle or engine speed.

My 1992 Corvette was hard to start when hot and cold. It was the fuel pressure regulator. Easy to replace. This worked for me and you may find a different wa...

1992 Chevrolet Corvette 5.7L Poor Idle Quality, Surge. ... The codes won't come back, car runs good but has a slight tip in hesitate and slight rough idle. On the ...

Oct 09, 2005 · Idle is going to poo. This is a discussion on Idle is going to poo within the General Help forums, part of the LSx Technical Help Section category; The car: 1992 Corvette LT1 The problem: Just within the last month or so my engine has developed a tick ...

Still idles rough and sputters when beginning to accelerate. When it runs, it runs like a brand new car. Its just when it idles that my heart breaks in 2. People have told me that its the vacuum lines. '01 SLK230,'93 190E 2.3, 1971 LS5 Corvette Convertible.

1981 Chevrolet Corvette 5.7 1984 Mercedes 190D 2.2 Auto - 140,628 miles 1987 Chevrolet Sprint 1.0 - 139,000 miles 1989 Oldsmobile Cutlass Calais S - 123,000 miles 1989 Chrysler New Yorker - 95,000 miles 1991 Dodge Stealth R/T - 101,000 miles 1999 Dodge Durango - 178,000 miles 2003 Dodge Dakota - 203,000 miles

Jul 03, 2008 · 1.) raised the idle set screw level (worked but putting into gear at high idle is probably hard on the tranny, didn't really address my problem) 2.) rebuild the carb and cleaned out the idle mixture circuits (was also trying to fix a hesitation out of the gates) helped, but...

You will have a slightly rough idle but the vehicle will seem to accelerate and perform normally until the injector becomes completely clogged and creates a On most Corvette models, ignition voltage is supplied directly to the fuel injectors. The engine controller controls each injector by grounding the...

The one-millionth Corvette rolled off the assembly line in 1992 as well. Chevrolet cranked out 20,479 with just 502 ZR-1s for 1992. 1993 – This was the 40th anniversary of the “Plastic Fantastic.” A special anniversary package was offered with Ruby Red paint and guts.

Jan 19, 2019 · A bad idle-speed control unit can cause the problem; it may need to be replaced. A faulty alternator can fast idle issues; if so, replace it. For the do-it-yourself mechanic, Many high-idle problems can be identified and remedied with some patient troubleshooting. Remove the air filter housing and start the car. Check that both injectors are firing at idle. If not, on the fuse box under the dash on drivers side, there are two fuses for the injectors, injector #1 and injector #2. Both are 3-amp fuses. Read: Crossfire Fuel System Diagnosis

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Question: 2001 chevy suburban 2wd 5.3l rough idle/stalling. "check engine soon " light on. Wanted to know how many oxygen sensors there are and where they are located. Thanks - Lonny, October 2008. Answer: Hi Lonny. Whoa there fella! Видео 1992 Corvette канала GatewayClassicCars.There are several common causes of engine vibration in a car, and they all result in shaking and noises that can be quite alarming and sometimes scary. However, if you know what some of the most frequent caused of engine vibration are, you can not only avoid too much stress and worry, you can know how to explain the problem and symptoms to a car mechanic when the time comes to correct the problem.

Jun 12, 2019 · The idle control valve, also commonly referred to as the idle air control valve, is an engine management component that is found in one form or another on the majority of road going vehicles. Re: rough idle. The cam or crank sensor is going out when driving at high speeds. I would have those parts check, and have the fuel pressure check , fuel filter 89 corvette quit running found bad ecm and replaced then the comp was bad replaced so now car idles great but will not take gas runs rough and...