# 2003 Grand Cherokee with quirky tranny

**URL:** <https://community.cartalk.com/t/2003-grand-cherokee-with-quirky-tranny/10622>\
**Category:** Maintenance/Repairs\
**Created:** [February 13, 2008, 5:16pm UTC](https://community.cartalk.com/t/2003-grand-cherokee-with-quirky-tranny/10622 "2008-02-13T17:16:02Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Firefly1968](https://avatars.discourse-cdn.com/v4/letter/f/bc8723/32.png) [@Firefly1968](https://community.cartalk.com/u/Firefly1968)\
**Post date:** [February 13, 2008, 5:16pm UTC](https://community.cartalk.com/t/2003-grand-cherokee-with-quirky-tranny/10622/1 "2008-02-13T17:16:02Z")

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I have 2003 Jeep Grand Cherokee Ltd. Yellow Check Engine light has come on periodically but now stays on. In sync with the yellow light, the transmission acts up. Won’t go into high gear, RPMS hover at around 3000 and is laggy in 1st gear. I needed to replace battery yesterday, and symptoms and light went away. Problem is back today. ???

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**Author:** ![booey\_50](https://avatars.discourse-cdn.com/v4/letter/b/e36b37/32.png) [@booey\_50](https://community.cartalk.com/u/booey_50)\
**Post date:** [February 13, 2008, 6:11pm UTC](https://community.cartalk.com/t/2003-grand-cherokee-with-quirky-tranny/10622/2 "2008-02-13T18:11:48Z")

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When you took out your battery you reset the light. the problem wont go away but it sounds like a clogged filter or tranny going out, very common problem with chrysler products.

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**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\
**Post date:** [February 13, 2008, 6:21pm UTC](https://community.cartalk.com/t/2003-grand-cherokee-with-quirky-tranny/10622/3 "2008-02-13T18:21:57Z")

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Go to AutoZone, Advance Auto Parts, etc. for a free trouble code scan. Post back with the exact number(s).

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**Author:** ![Firefly1968](https://avatars.discourse-cdn.com/v4/letter/f/bc8723/32.png) [@Firefly1968](https://community.cartalk.com/u/Firefly1968)\
**Post date:** [February 14, 2008, 4:57pm UTC](https://community.cartalk.com/t/2003-grand-cherokee-with-quirky-tranny/10622/4 "2008-02-14T16:57:00Z")

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The code is PO 871

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**Author:** ![researcher](https://avatars.discourse-cdn.com/v4/letter/r/edb3f5/32.png) [@researcher](https://community.cartalk.com/u/researcher)\
**Post date:** [February 15, 2008, 6:44pm UTC](https://community.cartalk.com/t/2003-grand-cherokee-with-quirky-tranny/10622/5 "2008-02-15T18:44:06Z")

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bunp