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i just changed my speeed sensor on a 98 buick century.when ...


Sent to Car Experts May 12, 2006 4:38 p.m.
i just changed my speeed sensor on a 98 buick century.when i drive my speedodmeter jumps and when i accelerate it does go into gear.it drives then it starts rebbing up.

Optional Information:
1998 Buick century 3.1
Customer (name blocked for privacy)
Status: Closed   Value: $15   
Info Request
May 12, 2006 4:40 p.m. (2 minutes and 15 seconds later) 		REPLIED to Info Request Check Mark
Why did you change the speed sensor in the first place?Were you trying to fix something?

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Reply to Davo/diablo666
Sent May 12, 2006 4:45 p.m. (4 minutes and 40 seconds later)
speed sesor input was low.
Customer (name blocked for privacy)
Answer
May 12, 2006 4:54 p.m. (9 minutes and 16 seconds later) 		REPLIED Check Mark
The first thing to check is the connection down at the sensor.I have had these where the wire looks good but is broken inside the insulation or the terminal is backed out of the connector at the sensor.Unplug the sensor and pull on each wire firmly to see if the wire stretches or pulls apart.If you don't find anything there,remove the air filter assembly and inspect the wiring harness that runs by the a/c accumulator.That is the big silver can located under the air filter housing and the harness has been known to rub it.You will have to look really closely to see if the insulation is worn through it doesn't jump out at you most of the time.

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Master ASE Certified.L1 Advanced Engine Performance Certified.Pa Emission Repair Technician.Just Answer Car Category Mentor.
PictureDavo  -- Master technician -- 100% Positive Feedback on 1873 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician
Reply to Davo/diablo666
Sent May 12, 2006 5:05 p.m. (10 minutes and 45 seconds later)
is that why the speedodmeter jumps
Customer (name blocked for privacy)
Answer
May 12, 2006 5:21 p.m. (16 minutes and 7 seconds later) 		REPLIED Check Mark
The speed sensor controls the speedometer and the shift points of the transmission so yes that's why it's jumping.Check the areas I said and we can go from there if you wish to.

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Master ASE Certified.L1 Advanced Engine Performance Certified.Pa Emission Repair Technician.Just Answer Car Category Mentor.
PictureDavo  -- Master technician -- 100% Positive Feedback on 1873 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician
Reply to Davo/diablo666
Sent May 13, 2006 1:22 p.m. (20 hours and 1 minute later)
CAN THAT WIRE THAT CONNECTS TO THE SPEED SENSOR GO BAD?I USED A TEST LIGHT.ON THE WIRES AND IT DID NOT LIGHT.I DID WHAT YOU SAID ABOUT CHECKING WIRES.AND WIRING HARNESS
Customer (name blocked for privacy)
Answer
May 13, 2006 1:28 p.m. (6 minutes and 18 seconds later)
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PictureDavo  -- Master technician -- 100% Positive Feedback on 1873 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician

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