Question about 1998 Saturn SL

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Idoling My Saturn is idoling erraticaly.At a stop light the rpm's will shoot up to 1000 then down to 0.Now im having trouble starting it.

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Place a vacuum gauge on the manifold, start the engine and, look for a cracked or, leaking vacuum line or, connector too much air entering the engine from a leak causes the rpm's to shoot up

Posted on May 20, 2009


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Fazer 1000 when idol RPM 1000,put the head lights on RPM drops below 0 then returns back to 1000, Has anyone got a suggestion as to why? Many thanks Ian R

The alternator kicks in when the lights are turned on. the regulator then reads the battery voltage and adjusts the charging rate and every thing settle down,try adjusting the idle 11 or 12 hundred it may help .

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My car is idoling at a very low rpm and sometimes cutting off when the car is at a stop light......... how do i make it idol at a higher rpm

ford focus are well known for the pcv tube going to intake manifold get soft and collaspe and well soon crack and log a check engine lite for bank one lean, due to vacuum leak, pcv valve is driver side front corner of the engine block just below the head.

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My saturn is idoling high the machine says its cam sensor, im hearing theres not one what could it be if not cam sen

Camshaft Position Sensor

This vehicle does not have a Camshaft Position Sensor. The manufacture does make references to "CAM" in some of the trouble code descriptions but this is NOT a reference to a Camshaft Position Sensor.

Notes On System Inputs

The EI module does not receive a signal from the crankshaft position sensor. Instead the CPK sensor signal is being received and processed by the PCM. The El module does, however, contain circuitry to determine camshaft position without using a camshaft sensor, by use of compression sense ignition (CSI).

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1 Answer

Rpm's keep reving up when i'm idoling and while i'm driving down the road. Also when i'm stopped at stop light the jeep wants to go like i'm fighting the gas and breaks

does it have CEL if so dont neglect it take it to an auto zone or advanced auto parts they can check OBDII systems for free that should help pin point the problem.

Oct 13, 2009 | 2000 Jeep Grand Cherokee

1 Answer

Not idoling properly

could be sumthing else but try idle air control valve

Aug 13, 2009 | 2002 Volkswagen Golf

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Try changing the map sensor it controls idle and it could affect your car like that...........

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Oil light turns on at idol, and almost dies at idol has oil

Replace your fuel filter and airfilter. If this doesn't work - you may need a new coil pack or cap and rotor if it has a distributor; if this is the case, change the spark plugs and plug wires.

May 10, 2009 | 1997 Pontiac Sunfire

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99 mercury cougar wont idol until car is warm p0420 codes came up

Hello, here is a thread I found on this site with from what it looks like, the same problem(with an added solution) that you have.

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check the coolant level on the radiator

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Bad idoling

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