NEED HELP! Rough IDLe, Long cranks, Backfiring!
#1
NEED HELP! Rough IDLe, Long cranks, Backfiring!
I need help, i'm new to the forum. I have a 04 GT rx8 6spd manual; its got 56k miles, and recently its been idling rough at stops, taking a bit longer to crank (sounds different too), feels like it's losing power through the 1st 3 gears (feels bogged down) and when i redlined it the other day while sitting idle it was backfiring after the 9k rev.... any ideas on what it could be?? Sorry if this was already posted and asked, i couldnt find one with all the problems that i've had. Thanks for your help.
#2
The "other RX8" owner
Join Date: Aug 2005
Location: McCordsville, IN
Posts: 110
Likes: 0
Received 0 Likes
on
0 Posts
Sounds like it could be lost compression... Which is NOT a good thing. Take it to the dealership, you should still be under warranty right (till 60K?)
#3
backfires are normal, rough idling is normal the lost power isnt get it checked out and have a compression test run on it. the cranking might be because u have the old battery they have a new better battery that should fix it
#6
Vtak just kicked in yo!!
iTrader: (1)
Join Date: Jun 2007
Location: Lake County IL
Posts: 4,053
Likes: 0
Received 0 Likes
on
0 Posts
^^^^ agreed, that helped when mine was running sluggish, as for the rough idol, its prob your a/c making it idol rough, and mine always backfires. Mine also idols rough when warmed up and hella rough with my ac on recirc. But its not sluggish
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
#7
Rotary's that have back firing problems usually are a result of fouled plugs. Weak compression doesn't mean that a rebuild is necessary. Any low mileage rotary with weak compression is only weak cause of excessive carbon build-up. Some time this week I'm going to be posting a thread on doing a proper BG carbon cleaning of the engine. I can almost guarantee it will fix a very large percentage of these typical Rx8 issues and void a possible future engine replacement.
#8
Zoom-Freakin'-Zoom
iTrader: (5)
Rotary's that have back firing problems usually are a result of fouled plugs. Weak compression doesn't mean that a rebuild is necessary. Any low mileage rotary with weak compression is only weak cause of excessive carbon build-up. Some time this week I'm going to be posting a thread on doing a proper BG carbon cleaning of the engine. I can almost guarantee it will fix a very large percentage of these typical Rx8 issues and void a possible future engine replacement.
beers
![Beer](https://www.rx8club.com/images/smilies/beer.gif)
Thread
Thread Starter
Forum
Replies
Last Post
gwailo
New Member Forum
38
05-14-2024 06:57 AM
TeslaMSI
New Member Forum
11
12-10-2015 01:10 AM