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1990 pontiac sunbird speedometer problem

1990 pontiac sunbird le non turbo tbi when we 1st got this car the speedometer did not work i took the speed sensor off checked it out and it was loosely fitted into the part that fits on the transmission after that problem was fixed the speedometer started working again a few weeks later it just quit working we have replaced the cluster ...that didnt work and have recently replaced the speed sensor it worked for about 2 weeks and quit again i dont know what the problem is can anyone help me on this problem?

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Posted on Jan 02, 2017

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SOURCE: 1997 ford escort speedometer not working

Well our escorts are built in liverpool uk and valencia here in spain,and if this is the problem with the autos many thanks for the info as it always comes in handy providing that i can remember it all .When you are a general mechanic like myself and not a dealer only so to speak ,then you have to fault find as you go along and work from basics.Now this is all very well on older vehicles but some of these new ones i cant evan change a battery without the immobiliser cutting in.Some of the newer mercs and VWs i cant evan change the oil or the brake pads without the immobiliser coming on.Also please dont mention the real bane of my life -----RENAULTS---and encrypted software .How these cars do in the states where the OBDII plug is connected into the car to test the emmisions ,with their renault only plug connector layout and encrypted software that would do mossad or the cia proud i can only wonder ??

Posted on Apr 25, 2009

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SOURCE: 1998 Rodeo Transmission Speed Sensor

You need to replace the speedometer gear that drives the sensor.

Posted on Aug 10, 2010

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