Question about 1994 Pontiac Bonneville

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1990 chevy truck egr valve

I got the code 32 on my scanner and i took it of and u can **** air threw the valve or blow threw it should it **** open or not blow threw it the truck would die after i drov e it about 20 miles it spit and bucked for a while then it would take back off and do it lkater down the road what is wrong is the egr bad .. thanks

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Hi you should not be able to blow air through the egr valve.if it good

Posted on Feb 14, 2009

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The eGR valve. It is opening when it is supposed to but when the temp gets hot it stops operating correctly.

Posted on Feb 14, 2009

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    WHERE IS THE EGR VALVE ON A 1990 OLDSMOBLE CUTLASS SUPREME LOCATED AT


    6ff5ad5.jpg About $140.00

    The EGR valve is mounted on the intake manifold and has an opening into the exhaust manifold.

    The digital EGR valve, used on all 1990 and later EGR-equipped engines (Except the 2.5L and 1994-96 3.8L engine) is designed to control the flow of EGR independent of intake manifold vacuum. The valve controls EGR flow through 3 solenoid-opened orifices, which increase in size, to produce 7 possible combinations. When a solenoid is energized, the armature with attached shaft and swivel pintle, is lifted, opening the orifice.
    The digital EGR valve is opened by the ECM, grounding each solenoid circuit individually. The flow of EGR is regulated by the ECM which uses information from the Coolant Temperature Sensor (CTS), Throttle Position Sensor (TPS) and Manifold Absolute Pressure (MAP) sensor to determine the appropriate rate of flow for a particular engine operating condition.

    Digital EGR Valve Testing:

    This system must be checked using a Tech 1®or equivalent scan tool. Steps 4, 5 and 6 must be done very quickly, as the ECM will adjust the idle air control valve to compensate for idle speed.
    1. Using a Tech 1®or equivalent scan tool, check for any diagnostic trouble codes and solve those problems first. Refer to the Diagnostic Trouble Code (DTC) lists later in this section.
    2. Select "EGR CONTROL'' on the scan tool.
    3. Start and run the engine, until it reaches normal operating temperature, then allow the engine to idle for 2 minutes.
    4. Energize EGR SOL #1; engine rpm should drop slightly.
    5. Energize EGR SOL #2; the engine should have a rough idle.
    6. Energize EGR SOL #3; the engine should idle rough or stall.
    7. If all tests were as specified, the system is functioning properly.
    8. If not, check the EGR valve, pipe, adaptor, gaskets, fittings, and all passages for damage, leakage or plugging. If all is OK, replace the EGR valve assembly.
    Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

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    1990 MERCURY TOPAZ


    sounds like your egr valve is stuck open. check for false vacuum signal to egr valve holding it open or for a plain old bad stuck open EGR valve.

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    Egr valve


    If you can hear the air leaking out then it is bad. Means the valve is stuck wide open and not closing at all like it should

    Feb 14, 2009 | 1994 Pontiac Bonneville

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