# 2004 Pontiac Aztek - Jumps

**URL:** <https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972>\
**Category:** Maintenance/Repairs\
**Tags:** pontiac\
**Created:** [December 8, 2023, 5:50pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972 "2023-12-08T17:50:01Z")\
**Posts on this page:** 17\
**Page:** 1

<div class="post-metadata">

**Author:** ![Aztekwoman](https://avatars.discourse-cdn.com/v4/letter/a/dbc845/32.png) [@Aztekwoman](https://community.cartalk.com/u/Aztekwoman)\
**Post date:** [December 8, 2023, 5:50pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/1 "2023-12-08T17:50:01Z")

</div>

Kinda jumps when I start to drive or out in gear

---

<div class="post-metadata">

**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\
**Post date:** [December 8, 2023, 9:34pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/2 "2023-12-08T21:34:58Z")

</div>

> [@Aztekwoman](#):
>
> Kinda jumps when I start to drive or out in gear

Ummm, can you elaborate a little more??

Welcome…

My crystal ball says you have broken engine/trans mount(s)…?..

---

<div class="post-metadata">

**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [December 8, 2023, 9:52pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/3 "2023-12-08T21:52:59Z")

</div>

Clean inside of throttlebore. And backside of butterfly.

---

<div class="post-metadata">

**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\
**Post date:** [December 9, 2023, 9:03pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/4 "2023-12-09T21:03:32Z")

</div>

We would need a little more info to give you better answers.  
but if the engine revs after you put it in gear and then jumps, then I would say you are low on tranny fluid from a leak, or the transmission has problems.

---

<div class="post-metadata">

**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [December 9, 2023, 10:59pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/5 "2023-12-09T22:59:43Z")

</div>

@Aztekwoman, welcome. It looks like you maybe thought you were entering into a search box and looking for search results. But on the other end here, it’s just a bunch of folks who like talking about cars and helping people with car issues.

So think of it that way and lay it all out like you’re explaining it someone else (but to “someones” who can’t actually look at or drive the car).

---

<div class="post-metadata">

**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [December 9, 2023, 11:14pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/6 "2023-12-09T23:14:26Z")

</div>

> [@Aztekwoman](#):
>
> jumps when I start to drive or out in gear

For best help here, suggest to include the engine & trans configuration, and the mileage. Are you saying this “jump” sensation happens when you shift from P into D? Or is is when you are already in D, but stopped, like at a stop sign, then when you let off the brake and press on the gas you sense a “jump”? What do you mean by “out in gear”? Do you mean you also sense a jump sometimes when you’ve been already driving at 35 mph for some time? If so, does the jump correspond to a gear shift? Do you hear any unusual sound at the same times as  
the jump, like you’d hear driving over a rumble strip?

---

<div class="post-metadata">

**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\
**Post date:** [December 9, 2023, 11:34pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/7 "2023-12-09T23:34:25Z")

</div>

> [@George\_San\_Jose1](#):
>
> suggest to include the engine & trans configuration

3.4L V6 with a 4T65E automatic transmission, only option…

But AWD is an option and mileage would be helpful as you pointed out…

---

<div class="post-metadata">

**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [December 9, 2023, 11:54pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/8 "2023-12-09T23:54:58Z")

</div>

Those 4T65Es were tricky as far as I can tell. I’ve got no claim to any transmission expertise. But I had one once ('00 Olds Silhouette van). The trans had issues, even after GM put a rebuild in it under warranty (owner previous to me). My searching for solutions told me that they’re great _when they work._ But that no one knew what to do with them when they didn’t - other than to just order a rebuild. (Mine was the very common P1811. All my very experienced local trans shop would say is that they’d install another rebuild, but I didn’t see the point in that. I did find a work-around, which was basically a hack - part of a shift kit - but it worked. The van went to scrap when it blew a head gasket).

Anyway, that contributes nothing to help the OP…I’d imagine. And I second the WAG of mounts.

---

<div class="post-metadata">

**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\
**Post date:** [December 10, 2023, 12:23am UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/9 "2023-12-10T00:23:51Z")

</div>

> [@cigroller](#):
>
> Those 4T65Es were tricky as far as I can tell.

A lot of the problem(s) as with a lot of transmissions (not all) is in the valve body, a lot of shops just put them back stock… Always need to do the VB upgrades/fixes… Also there are upgraded 1-2 & 2-3 & 4th Accumulator Pistons as well as the Actuator Feed Limit Valve repair/replacement…

Here is 1 of 4 fix’s of the causes for the 1997 and up 4T65E failure, on top of the normal repairs needed…

> **[SK4T65E.pdf](https://res.cloudinary.com/transgo/wbiss/sk/SK4T65E.pdf)**
>
> 917.95 KB

---

<div class="post-metadata">

**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [December 10, 2023, 4:42am UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/10 "2023-12-10T04:42:38Z")

</div>

You’d know better than I.

In my case the “part of a shift kit” hack I referenced was just installing those new/upgraded accumulator springs from that transgo kit. The springs could be done easily with just a pan drop. No valve body work and certainly no total rebuild. (So the rest of the transgo kit went unused). Just the upgraded springs totally worked…for as long as I needed them to.

---

<div class="post-metadata">

**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\
**Post date:** [December 10, 2023, 2:12pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/11 "2023-12-10T14:12:58Z")

</div>

Yeah it amazes me as to how many transmission builders and shops do not use the TransGo VB kits etc, it will fix a lot of the issues before they become issues, everybody just wants to slap a overhaul kit and what ever hard part was damaged due to flow issues in the transmission and ship it, very few want to fix the real issue to start with… I was taught to find the root cause and fix it, not just slap it back together with common new parts and hope for the best…

---

<div class="post-metadata">

**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [December 10, 2023, 3:03pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/12 "2023-12-10T15:03:11Z")

</div>

The OP hasn’t returned after 2 days to clarify her somewhat cryptic “explanation” of her car’s behavior. While it is tempting to go on about possible transmission problems, we don’t really have a good understanding of her car problem, and her situation might not be at all transmission related. Unless she returns with a more detailed explanation, I think that further responses are not necessarily going to help her.

---

<div class="post-metadata">

**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\
**Post date:** [December 10, 2023, 3:15pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/13 "2023-12-10T15:15:42Z")

</div>

I agree, cigroller and I were just talking about the 4T65E transmission in general, not the OP’s, (cause you know this is probably another one and done post) after I let George know what the eng/tran options were or lack there of… lol

I am still going with my 1st post of the crystal ball guess until, if ever, the OP gives more detailed info… 😉

---

<div class="post-metadata">

**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [December 10, 2023, 3:29pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/14 "2023-12-10T15:29:46Z")

</div>

My equinox w/3.4 has an Aisin af-33. Made by toyo subsidiary. Always been a good trans. So not every 3.4 has 4t60

**Aisin Corporation** (株式会社アイシン, _[Kabushiki gaisha](https://en.wikipedia.org/wiki/Kabushiki_gaisha)Aishin_) is a Japanese corporation that develops and produces components and systems for the automotive industry. Aisin is a [Fortune Global 500](https://en.wikipedia.org/wiki/Fortune_Global_500) company, ranked 359 on the 2020 rankings.[[5]](https://en.wikipedia.org/wiki/Aisin#cite_note-5) Aisin is a member of the [Toyota Group](https://en.wikipedia.org/wiki/Toyota_Group) of companies.

---

<div class="post-metadata">

**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [December 10, 2023, 4:13pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/15 "2023-12-10T16:13:02Z")

</div>

I believe some Vues had the Honda V6 . . .

---

<div class="post-metadata">

**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [December 10, 2023, 6:30pm UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/16 "2023-12-10T18:30:36Z")

</div>

If threads around here _don’t_ go off on tangents, that’s when I’m surprised. 😉

---

<div class="post-metadata">

**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [December 13, 2023, 11:49am UTC](https://community.cartalk.com/t/2004-pontiac-aztek-jumps/193972/17 "2023-12-13T11:49:01Z")

</div>

I’m surprised someone admits they have an Aztec!  
Little late for me to be posting🤪
