Question about 2000 Suzuki Grand Vitara

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The idle gose high and low sometimes it dies when its cold,i checked for vacum leaks did not find any,i changed the pcv valve it ran better but it still running almost the same,i don't know what else to check.

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  • bigdaddyev May 27, 2011

    I checked the egr i put a volt meter on the terminals and got no contunity thats good,but i can't find my airflow sensor i put in a clod intake about 2 years ago it had no sensor to my knowlage is there anything else you can recomend.

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Welcome to Fixya

You might have a bad headgasket that causes a misfire and rough idle. Check the spark plugs if it is wet with oil. If plugs are wet with oil, then fix for that is to replace the valve cover gaskets and spark plug tube seals. Run a scan tool and see if you will be getting error codes. Provide the codes to me and i will help you fixed the problem. Thank you for using Fixya!

Posted on May 27, 2011

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Have you replaced the EGR Valve? Also look at the Mass Air Flow Sensor. The EGR valve is located near the top rear of the engine on the drivers side, it has 1 hose coming out of it, with the vehicle running at normal operating temperature, remove that top hose, and the vehicle run like it is now, if it starts to stumble and dies, then the egr valve is bad.

The only way to check the Mass Air Flow Sensor is to take a volt meter and measure resistance, you should have .5 volts running into the hot with the other lead on a ground. You can also pull the air filter and visually inspect the mass air flow coil, if it looks brown then it is bad and needs replacing.

Posted on May 26, 2011

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What problems are caused by a bad pcv valve


https://www.autorepairhelp.us/pcv-valve-related-symptoms-and-problems/

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