Tip & How-To about 1998 Plymouth Grand Voyager

Checking Relays (and fuses)

This tip is useful for all types of vehicles:


If you think that you may have a bad (burned out) relay: before you go buy a new one: purchase (if you don't have one) a fuse tester.

1. Disconnect the battery.
2. Pull suspected "bad' relay
3. With fuse tester adjusted accordingly:
a. make sure relay is not melted, or coming apart
b. With the two prongs on the tester, touch two prongs on the relay until the light on the tester comes on. There is no way of knowing with two are the live ones except by touching two together.
c. If the light comes on, you're good to go; and if not...well, you know...replace the relay.

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carsandcomps
Guru, fixya.com
Oregon

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1 Answer

Toyota AC Light flashing


Great tip! Thanks. I inspected my relay and the contacts definitely showed signs of arching. Another cause of a flashing AC button light is a loose connection (male to female plug) at the compressor. I had my timing belt replaced and the Toyota mechanic failed to plug it back in... the light would be on for about 5 seconds then start to flash for this as well.

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headlights do not come on ??? The bulbs work...the highlights work...the headlights will not come on automatically or manually...what would cause this?


swap fuse 45 and 46, if that works go to your nearest auto parts store and buy a new fuse. One fuse is for a fan exghuast the other has to do with the low beam.

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I have a 2003 Ford Escape V6 3.0L. Where is located the transmission relay. I think it is called Mini ISO Relay.


Mini ISO Relay is a TYPE of relay. Your vehicle uses 2 types of relays; Mini ISO Releays and Micro ISO Relays. They are located in several locations throughout the vehicle. I do not know what you mean by "Transmission Relay" What, exactly, are you trying to fix?

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replace oxygen sensor


REMOVAL & INSTALLATION Start the engine and allow it to reach normal operating temperature, then turn the ignition switch OFF. Disconnect the negative battery cable. Open the hood and locate the O2sensor connector. It may be necessary to raise and safely support the vehicle for access to the sensor and its connector. NOTE: On a few models, it may be necessary to remove the passenger seat and lift the carpeting in order to access the connector for a downstream O2sensor. Disengage the O2sensor pigtail connector from the vehicle harness connector. NOTE: There are generally 2 methods used to mount an O2sensor in the exhaust system. Either the O2sensor is threaded directly into the exhaust component (screw-in type) or the O2sensor is retained by a flange and 2 nuts or bolts (flange type). WARNING To prevent damaging a screw-in type O2sensor, if excessive force is needed to remove the sensor lubricate it with penetrating oil prior to removal. Also, be sure to protect the tip of the sensor; O2sensor tips are very sensitive and may be easily damaged if allowed to strike or come in contact with other objects. Remove the sensor, as follows: Screw-in type sensors: Since O2sensors are usually designed with a permanently-attached wiring pigtail, it may be necessary to use a socket or wrench that is designed specifically for this purpose. Before purchasing such a socket, be sure that you can't save some money by using a box end wrench for sensor removal. Flange type sensors: Loosen the hold-down nuts or bolts and pull the sensor out of the exhaust component. Be sure to remove and discard the old sensor gasket, if equipped. You will need a new gasket for installation. Perform a visual inspection of the sensor. Black sooty deposits may indicate a rich air/fuel mixture, brown deposits may indicate an oil consumption problem, and white gritty deposits may indicate an internal coolant leak. All of these conditions can destroy a new sensor if not corrected before installation. To install: Install the sensor, as follows: NOTE: A special anti-seize compound is used on most screw-in type O2sensor threads, and is designed to ease O2sensor removal. New sensors usually have the compound already applied to the threads. However, if installing the old O2sensor or the new sensor did not come with compound, apply a thin coating of electrically conductive anti-seize compound to the sensor threads. WARNING Be sure to prevent any of the anti-seize compound from coming in contact with the O2sensor tip. Also, take precautions to protect the sensor tip from physical damage during installation. Screw-in type sensors: Install the sensor in the mounting boss, then tighten it securely. Flange type sensors: Position a new sensor gasket on the exhaust component and insert the sensor. Tighten the hold-down fasteners securely and evenly. Reattach the sensor pigtail connector to the vehicle harness connector. Lower the vehicle. Connect the negative battery cable. Start the engine and ensure no Diagnostic Trouble Codes (DTC's) are set. Posting pictures next......

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