Question about 1999 Saturn SL

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Saturn sl2 rough idle wont accelerate. We replaced the timing chain, spark plugs, air filter, TPS sensor, and changed oil. We check the coils, plug wires, fuse block, and negative ground. Problems started leaving work. started fine, went to accelerate from the parking spot and it killed. Wouldn't idle or start. We made the above repairs and now it will idle but wont accelerate.

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Posted on Jan 02, 2017

  • 5 Answers

SOURCE: 1997 saturn sl2 dohc is there a timing belt or chain on it

These engines have a timing chain, not a belt. They also have nylon coated guides under the cover that wear. If you change the chain yourself, or have it done, check the guides as well.

Posted on Mar 26, 2009

  • 31 Answers

SOURCE: Rough Shifting in Automatic Saturn 02

change the fluid in your tranny, start looking for a different car. my advice: get a toyota

Posted on May 06, 2009

  • 1584 Answers

SOURCE: 2000 Saturn SL series 1.9 Starts fine has rough

Keep it simple.

Check for vacuum leak at inlet manifold......at idle simply spray some crc lube or similar (Brakleen is very good) around manifold and listen for increase in reves. If so leaking manifold gasket or similar.

Posted on Mar 10, 2010

  • 6 Answers

SOURCE: I have a 99 saturn sl2 is running rough i`ve

Try replaceing the ECT sensor. Mine was doing same thing, this SOLVED my problem!!

Posted on Mar 30, 2010

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SOURCE: Saturn SL2 does not idle, revs, misses.... Did before I removed

My car was doing this pretty bad and I changed the engine coolant temp sensor and it fixed my problem. Hope this helps!!

Posted on Mar 30, 2010

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1 Answer

2000 hyundai lantra sportswagon running rough, idling rough also, when accelerating splutters/spurges. Thinking maybe spark plugs or timing belt??


Needs a tune up. Adjust engine timing, replace plugs and plug wires, replace air filter, oil and oil filter, fuel filter and clean fuel injectors, adjust valves.

Jun 13, 2017 | Hyundai Cars & Trucks

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I have a 2000 hyundai grandeurmy car idle rough, had duel injecters cleaned but it's still the same. now its sluggish when you take off and they say its a problem with a one cylinder is not working they...


If it is not firing on one cylinder, check and eventually replace distributor rotor, or electronic injection module.
Check also for camshaft problems.

Oct 07, 2008 | Hyundai XG300 Cars & Trucks

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What would cause my 2002 ford explorer xls to idle rough


What engine do you have? is check engine light on? You said you changed coil pack, but what about spark plugs? could be fouled by normal wear, improper application/plug gap, oil fouling (oil residue on electrode) caused by bad valve guide seals or bad piston rings or gas fouling(electrode wet with gas) caused by bad plug, wire, injector, O-2 sensor. Could be caused by a vacuum leak (hose or intake manifold/gasket) Check all vacuum hoses for cracking/chaffing, repair as needed. with engine idling spray carburetor cleaner at base of intake manifold watch for rpm increase if so there is a vacuum leak. Could be stuck open egr valve, Could be compression problem or timing chain problem. This is the best I can do with info you provided. Hope it helps.

May 06, 2014 | 2002 Ford Explorer

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I have a 2000 Saturn SL2 that was sitting for a about 2 years. So far we have replaced the engine computer, ignition coil and spark plugs. The engine is still running rough, it ramps up and down on it's...


Change the gas (and the oil, with Synthetic). The gas loses it's volatility after just a few months and starts to go bad. Siphon all the gas out and put in a fresh tank. Let us know if that helps.

Aug 07, 2013 | Saturn SL2 Cars & Trucks

1 Answer

2.2 litre 1995 gmc sonoma idles rough no trouble code. found hole i brake booster vaccum line fixed that. replaced and changed fuel filter, idle air control valve, got spark at coil packs, put new spark...


Three things you should check using a good code checker which can read sensor outputs - the throttle position sensor (TPS), the mass air flow sensor (MAF) and the EGR valve. While you are at it, replace the PCV valve.

Jul 30, 2017 | 1993 GMC Sonoma Club

1 Answer

Diagnosed with ignition coil problem, replaced coil, spark plugs & wires, inspected pcm, vehicle running rough in gear, acceleration is rough, smooths out when it gets going. oil on one spark plug....


2006 3.9 has to be a T-Bird or LS

There are no spark plug wires

It has Coil-On-Plug individual coils

Plugs don't fail --they get changed at 60,000 miles
give or take,say every 3 years

The front (2) O2 Sensors get repalced at 100,000
miles. The ones closest to the engine

Clean MAF Sensor at least once a year

I have no idea how you inspect a pcm,if your
at home & have no scanner or PC Based Software

Egr Valves fail early on those & other fords

You could test,not look at,actually put an oscilloscope
on the TPS Sensor

Any oil on a spark plug requires a new valve cover gasket

If a coil was replaced based on a code alone,you may have
replaced a good one,not what needed to be replaced if any

Jul 13, 2011 | Ford Freestar Cars & Trucks

1 Answer

I have a 1997 Mitsubishi Galant with rough idle and no power when accelerating. Replaced spark plugs, distributor cap, rotor, spark plug wires, MAF, both oxygen sensors, air filter and the engine still...


I am having the same issue on Mitsubishi Galant 02. Clattering on acceleration, herky jerky idle. Pulled a code multiple cylinder misfire. My mechanic's diagnosis is bad valve cover gasket causing oil to seap into the spark plugs and bad timing belt, which I have not replaced at 150k miles. I do however know my fuel injectors do need cleaning, he hasn't ruled that out either. Have you pulled any code on it? I have read on engine knock sensor going out on some of these also. Hope this helps some.

Oct 20, 2010 | 1997 Mitsubishi Galant

1 Answer

My 93 Saturn SL2 intermittent stalling issues


I would look at the egr system. First pull the valve and clean it. If you have a vacuum tester this would be a good time to test the valve itself as well. When under load you should be able to see the diaphragm engage and hold and then release as you release the vacuum. If that doesn't work check and/or replace the egr solenoid. It's located on the driver's side of the valve cover and usually runs about 60$.

Yours is a common complaint and the above is the most common remedy. Outside of that you might want to check and clean the idle air control valve and the port where it's housed. If it is extremely dirty or something managed to get stuck in there that could affect you vehicle running at idle as well.

Another thing, even though you just changed the plugs, pull one back out and look at it. If is fouled with oil you might need a new valve cover gasket which if it's leaking badly enough will impede spark.

Apr 30, 2010 | 1993 Saturn SL2

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