# 2007 Nissan Frontier - Top speed is 60 MPH **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** nissan\ **Created:** [December 23, 2021, 12:19am UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409 "2021-12-23T00:19:03Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![GabrielCovarrubiasJr](https://avatars.discourse-cdn.com/v4/letter/g/46a35a/32.png) [@GabrielCovarrubiasJr](https://community.cartalk.com/u/GabrielCovarrubiasJr)\ **Post date:** [December 23, 2021, 12:19am UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/1 "2021-12-23T00:19:04Z")
My 2007 Nissan Frontier SE 4x4 V6 4.0 wont accelerate after it reaches 55 or 60 MPH what’s up with that. ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [December 23, 2021, 2:27am UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/2 "2021-12-23T02:27:02Z")
What happens when you try to accelerate? Do the RPMs go up or stay the same? If they go up I’d suspect transmission problems. If they don’t, you might have a clogged catalytic converter. ---
**Author:** ![GabrielCovarrubiasJr](https://avatars.discourse-cdn.com/v4/letter/g/46a35a/32.png) [@GabrielCovarrubiasJr](https://community.cartalk.com/u/GabrielCovarrubiasJr)\ **Post date:** [December 23, 2021, 5:06am UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/3 "2021-12-23T05:06:57Z")
I just replaced both cats ---
**Author:** ![GabrielCovarrubiasJr](https://avatars.discourse-cdn.com/v4/letter/g/46a35a/32.png) [@GabrielCovarrubiasJr](https://community.cartalk.com/u/GabrielCovarrubiasJr)\ **Post date:** [December 23, 2021, 5:08am UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/4 "2021-12-23T05:08:04Z")
Oh and the RPMs go up ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [December 23, 2021, 1:48pm UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/5 "2021-12-23T13:48:37Z")
Is the check engine light on? Is it an automatic? Or a manual? How many miles on it? Why did you replace the cats? ---
**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 23, 2021, 2:02pm UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/6 "2021-12-23T14:02:26Z")
how much of the exhaust system was replaced? cats. resonators. mufflers? whose idea was it to replace cats? has a mechanic inspected this vehicle? ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [December 23, 2021, 3:40pm UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/7 "2021-12-23T15:40:28Z")
Based on what you’ve posted, I suspect transmission problems. Assuming it’s an automatic, have you checked the fluid lately? How long since it was changed? ---
**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 23, 2021, 4:14pm UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/8 "2021-12-23T16:14:17Z")
1. Car won’t accelerate. Replace exhaust. 2. Still won’t. Hmm, replace trans? ---
**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 23, 2021, 11:44pm UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/9 "2021-12-23T23:44:11Z")
Is the check engine light on? Has your shop checked for engine/transmission diagnostic codes? The computer will respond to certain failures it detects by putting the vehicle in a reduced power mode. There should be diagnostic codes stored if that’s what’s happening. You may need a mode-6 real time parameter test, in particular for fuel trim. ---
**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 24, 2021, 6:02pm UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/10 "2021-12-24T18:02:23Z")
> [@GabrielCovarrubiasJr](#): > > RPMs go up Yet your “mechanic” chose to replace the cats? ---
**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\ **Post date:** [December 24, 2021, 11:35pm UTC](https://community.cartalk.com/t/2007-nissan-frontier-top-speed-is-60-mph/181409/11 "2021-12-24T23:35:08Z")
> [@Purebred](#): > > Yet you “mechanic” chose to replace the cats? I wondered about that too but I presumed the cats were replaced for some other reason. You could easily be right, though.