Question about 1999 Saturn SL

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Starts ruff and smokes

I had changed the fuel filter spark plugs and wires to clear issue but i think it could be a fouled injector issue do to clears after ruff start and runs fine when running

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Check coolant temp sensor

Posted on Apr 18, 2009

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1997 sl2 satun started with rough idol now won't start . cranks over and floods. has new fuel filter & air filter


Check the fuel pressure regulator. Pull the vacuum hose off it, If it smells of gas, Replace the regulator. Diaphragm broke and is flooding the engine threw that vacuum line. You'll also need to replace the spark plugs. Gas will foul them out also.

Dec 31, 2016 | Cars & Trucks

2 Answers

WOULD NOT CRANK CHANGED STARTER NOW CRANKS BUT WILL NOT RUN


Something intermittent is wrong with your fuel delivery system - fuel pump, fuel filter, fuel pressure regulator, check valve.. If it always starts when you use starting fluid that eliminates spark/igniter issues. Check all electrical connections in fuel delivery components.

If the ecm is touchy it might not be sending the signal for the injectors to shoot gas into cylinders.

But I think you have a bad connection somewhere along the line.
BTW, great car - have one also. But my dealer sucks.

Nov 13, 2015 | 2011 Hyundai Sonata 2.4

5 Answers

I have no plug wire spark 1997 dodge average 2.5 v6 24 value.have already replaced crankshaft positioning sensor on it and still no spark to the wires


Sounds like a bad distributor. Had you pulled a spark plug out you may have found them wet with gas after cranking. If they are wet the crank sensor is working since both injector pulse and coil pulse rely on crank signal.

The distributors are known week points in the ignition system and used to be common when theses cars where still on the road. A reman will run you $250 U.S.

Apr 05, 2015 | 1997 Dodge Avenger

1 Answer

Blowing black smoke


far too much fuel not getting completely burned upon iginition.
That leads on to look at:
-fouled fuel injectors, (clean them - run injector cleaner)
-lack of air to the intake (filter and clear out tubing),
-spark plugs are fouled, (replace them, ensure wires seated correctly on plug)
-ignition power is low or partial, (ignition system module not sending enough electricity to plugs)
-ignition wires are bad, (check/replace)
-ECM is failing or getting bad sensor readings. (shop diagnosis)
-cat convertors have been removed and sensors are at fault
Its a long list -- do the easy stuff yourself, leave hard stuff to a shop diagnosis.

Mar 28, 2015 | Cars & Trucks

1 Answer

2002ford tausar wont spark injectors for it to start


when the computer sees no ignition spark going to the spark plugs, it shuts down the fuel system. it wont keep sending fuel and injecting it because the cylinders would have too much raw gas accumulating. the gas would end up in the oil. very bad. so first, see if you have spark at a plug wire. if there is, inspect the plugs, if theres not, get a code reader and do things right. dont unplug anything else. read the codes in the memory. write them down. clear the memory. service the codes that indicate loss of ignition first.
this car may have been in LOS (limited operating strategy ) till the plugs fouled. the LOS is caused by system faults that required correction for too long. now, with new plugs, and the memory erased, you can run codes again to see whats at fault when you try to start. if theres no spark sent to the plugs at that point, then the pinpoint test is valid to run for loss of spark. dont forget to change the oil !!! report your findings or discuss it with your tech at the ford dealer. so many erroneous tests, codes and confusers may come up that he runs your vin and finds tsb info you may need to clear this up.
after the memory has been cleared you could have fewer codes, one code or no codes. now put a test light on an injector to verify pcm signals are going to the injectors. dont replace parts that dont fail pinpoint tests

Apr 02, 2014 | 2002 Ford Taurus

2 Answers

Is there a way to know if you have a park plug issue or spark plug wire issue?


To check a spark plug it must be removed from the engine. The insulator should be a light golden brown with no oily deposits. The gap should also be checked and compared to the specification in the owners manual or a repair manual. Spark plug wires can be tested with a spark plug wire tester. A tool that looks somewhat like a spark plug with a clear section in the middle and a clamp on one end. This tool gets plugged into a spark plug wire and clamped to a ground or the engine block. Start the engine and check for spark through the clear part of the tool. Also run the car at night or in a dark garage and check to see that none of the wires are raking.

Mar 08, 2011 | 1995 Mazda MX-6

1 Answer

Took my car to have check engine light checked. It said misfire cylinder 2. I replaced the spark plug wires and spark plugs and it still says misfire cylinder 2. What is the next step? Thanks Steve


In modern cars so much can go wrong to indicate an issue and a computer in the car can get confused as to what is really occurring. In most cars a misfire indicates either an incorrect firing order, shorted wires, bad plugs, or bad coil. Since you have replaced the wires and plugs we can rule those out. Im also assuming after the second engine code you pulled #2 plug and made sure it wasnt fouled with oil, was gapped correctly, and reinserted. To produce a sufficient spark for combustion the alternator sends power to a "Coil" which is in reality a storage point that then sends an amplified electrical current down the spark plug wire to the cylinder to fire the plug. If the car is truly misfiring you will notice a rough idle, fluctuating RPM's, and lack of acceleration. If you are experiencing any of these I would look at replacing the coil. If you arent experiencing any of these I would have the code cleared again and complete one drive cycle 100 miles and then have codes read again. If you still get a Misfire error some other causes known to occur with Rio's are fuel filter issues, gas caps, and fuel injector issues. Although rare, these can cause issues with the cars fuel delivery and emissions which can confuse the sensor in the ECU. I would try injector cleaner, replace the fuel filter, and gas cap . If funds are an issue then based on symptoms I would start with injector cleaner first $3, Filter $12, Gas cap $12, Coil $48 to $200+

Jun 06, 2010 | 2001 Kia Rio

1 Answer

4.0 runs but misses and blows blak smoke


if your blowing black smoke your running way to rich (to much gas not enough air) fuel pressure regulator stuck injector bad plugs and wires
where i would start is check fuel pressure regulator that more than likely your cause but u need to change your spark plugs too because all that gas is fouled out your plugs check your spark plug wires with ohm meter if they read under 15 k ohms there good

Feb 13, 2010 | 1988 Jeep Cherokee

2 Answers

I put diesl gas in my nissan altima... I drained


You are probably going to have to change the spark plugs. They could have gotten fouled out from the oil based fuel.

Oct 22, 2009 | 2000 Nissan Altima

1 Answer

Hi my spark plugs keep fouling up and making my 1998 v6 petrol run rough iv'e check all coils and are fine, injectors are all fine, no head gasket problems. smokes when first started then clears. rings...


If your plugs foul most likely you are having a problem with the fuel air mixture and that is causing them to fail. Check your IAC Idle Air Control valve and make sure that your air filter and everything is clean

Feb 19, 2009 | 2003 Suzuki Vitara

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