# Speedo/odometer gone wild **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [August 6, 2014, 1:01am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432 "2014-08-06T01:01:34Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Sashe](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@Sashe](https://community.cartalk.com/u/Sashe)\ **Post date:** [August 6, 2014, 1:01am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/1 "2014-08-06T01:01:34Z")
I jumped a friend from my 2005 chev malibu post-to-post. It killed my car. Then I jumped it pos/pos, neg to frame and car started again. Afterward my odometer showed about 82,000 miles more than actual miles. When I drive approx. 65, speedo goes to 110. Can this be fixed so I show the correct mileage and speed? Everything else was normal and working okay. ---
**Author:** ![Sashe](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@Sashe](https://community.cartalk.com/u/Sashe)\ **Post date:** [August 6, 2014, 1:04am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/2 "2014-08-06T01:04:21Z")
p.s. to Sashe speedo problem. The car I jumped was found o have a damaged neg. terminal but battery was okay. ---
**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\ **Post date:** [August 6, 2014, 1:05am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/3 "2014-08-06T01:05:16Z")
You could try disconnecting the battery neg for 10 mins and see if it resets. ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [August 6, 2014, 1:13am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/4 "2014-08-06T01:13:00Z")
If you disconnect the battery, you better know how to reset the PassLock anti-theft system or the engine won’t start. Tester ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [August 6, 2014, 1:21am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/5 "2014-08-06T01:21:37Z")
65 mph = 105 kph…hmmm… ---
**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\ **Post date:** [August 6, 2014, 1:28am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/6 "2014-08-06T01:28:38Z")
@insightful has it. [https://answers.yahoo.com/question/index?qid=20110518201556AATEUBU](https://answers.yahoo.com/question/index?qid=20110518201556AATEUBU) ---
**Author:** ![MY\_2\_CENTS](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@MY\_2\_CENTS](https://community.cartalk.com/u/MY_2_CENTS)\ **Post date:** [August 6, 2014, 1:43am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/7 "2014-08-06T01:43:23Z")
This procedure should also be in your user manual. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [August 6, 2014, 2:53am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/8 "2014-08-06T02:53:17Z")
LOL, nice catch insightful. Okay you young guys, if 1 mile = 1.6 km, then how many miles would you have to have for the miles converted to klicks convert to the actual + 82,000? To the OP: check your owner’s manual to see how to make your speedo and odo read miles instead of kilometers. Try it and post back. ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [August 6, 2014, 3:21am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/9 "2014-08-06T03:21:08Z")
TSM, now there’s a good car-centric Puzzler. ---
**Author:** ![wesw](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/wesw/32/2713_2.png) [@wesw](https://community.cartalk.com/u/wesw)\ **Post date:** [August 6, 2014, 3:25am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/10 "2014-08-06T03:25:13Z")
nice insight… ---
**Author:** ![sgtrock21](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/sgtrock21/32/246_2.png) [@sgtrock21](https://community.cartalk.com/u/sgtrock21)\ **Post date:** [August 6, 2014, 3:52am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/11 "2014-08-06T03:52:54Z")
The odometer is still reading about +50,000 miles extra. That is serious depreciation. The only way I can think of to mitigate that would be a recent service where miles were documented and an adjustment by DMV. I don’t know if this is possible. ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [August 6, 2014, 3:57am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/12 "2014-08-06T03:57:44Z")
Just a wild guess. OP had 137,000 miles on the odo before the incident. ---
**Author:** ![sgtrock21](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/sgtrock21/32/246_2.png) [@sgtrock21](https://community.cartalk.com/u/sgtrock21)\ **Post date:** [August 6, 2014, 5:02am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/13 "2014-08-06T05:02:30Z")
insightful Math was never my best subject but I am always ready to learn. I think the OP stated that their odometer gained 82,000. If this was kilometers at 1.62 per mile it would be about 50,600 miles. Whether miles or kilometers this would be a significant addition to their vehicles “mileage” My question is: What does 137,000 miles on the odometer have to do with this problem? My main concern is how can the OP get this discrepancy corrected? ---
**Author:** ![MY\_2\_CENTS](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@MY\_2\_CENTS](https://community.cartalk.com/u/MY_2_CENTS)\ **Post date:** [August 6, 2014, 5:30am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/14 "2014-08-06T05:30:21Z")
My math agrees with insightfuls. The point is when he converts the odometer/speedometer back to miles it will be the correct. Nothing further needs to be done. ---
**Author:** ![MY\_2\_CENTS](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@MY\_2\_CENTS](https://community.cartalk.com/u/MY_2_CENTS)\ **Post date:** [August 6, 2014, 5:48am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/15 "2014-08-06T05:48:05Z")
Look at it this way. The OP didn’t tell us what the odometer is reading but it is probably around 219,000 km. .62 X 219,000 is 137,000. The owners manual will give instructions on how to switch it back to miles. ---
**Author:** ![sgtrock21](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/sgtrock21/32/246_2.png) [@sgtrock21](https://community.cartalk.com/u/sgtrock21)\ **Post date:** [August 6, 2014, 5:49am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/16 "2014-08-06T05:49:49Z")
OK I get it. If the odometer is corrected to miles it will work but since OP did not disclose pre problem odometer reading where did 137,000 miles come from? ---
**Author:** ![MY\_2\_CENTS](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@MY\_2\_CENTS](https://community.cartalk.com/u/MY_2_CENTS)\ **Post date:** [August 6, 2014, 5:51am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/17 "2014-08-06T05:51:45Z")
.62 times 219,000. .62 is the conversion factor for km to miles. ---
**Author:** ![sgtrock21](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/sgtrock21/32/246_2.png) [@sgtrock21](https://community.cartalk.com/u/sgtrock21)\ **Post date:** [August 6, 2014, 5:56am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/18 "2014-08-06T05:56:36Z")
Since the OP did not disclose the mileage how could anyone come up with “probably” 219,000 miles? It could be less than 50,000 miles! ---
**Author:** ![MY\_2\_CENTS](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@MY\_2\_CENTS](https://community.cartalk.com/u/MY_2_CENTS)\ **Post date:** [August 6, 2014, 6:01am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/19 "2014-08-06T06:01:52Z")
I think what made think what made this confusing was the fact that the OP didn’t state what the odometer is reading now (km) and what it read before the incident (miles) He only stated how much it increased. ---
**Author:** ![MY\_2\_CENTS](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@MY\_2\_CENTS](https://community.cartalk.com/u/MY_2_CENTS)\ **Post date:** [August 6, 2014, 6:08am UTC](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432/20 "2014-08-06T06:08:57Z")
Not 219,000 miles - 219,000 km. [Next page](https://community.cartalk.com/t/speedo-odometer-gone-wild/86432.md?page=2)