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Losing ALL power at 4000 RPM?!?!?!

11K views 15 replies 10 participants last post by  Joker23  
#1 ·
This may be a very easy question, but this has never happened to me so I'm not sure what it is. This has just started a few days ago, whenever I get to about 4000 rpm's all the sudden i completely lose power to the wheels, the engine is still revving but the entire car just slows down. This only happens if the throttle is near wide open, if I slowly drive it up to 4000 it won't happen. But if I am running it wide open, and a hit around 4000 rpm's you can feel something vibrating badly, as well as a sort of high pitched whistling noise. I can't really describe it any better than that, because I only let this happen for about a split second. The car has 43,000 miles on it. I'm not sure if this has anything to do with it, but lately when I shift into 2nd it makes a loud clanking noise as well as it is much harder to get into gear than the others. Could the loss of power be a vacuum leak? Does this sound right? This is really starting to piss me off, so any help you guys have would be great. I guess I'll just take it to the dealer as soon as possible. Thanks
 
#3 ·
damien™ said:
The intake snorkle is sucking up against the hood. The rivets that hold it down have must of popped off.

wow, now that i think about it, i noticed today that those two rivets where gone. wow if this fixes it, which i will try tomorrow, then you are amazing. thank you so much, this was annoying the hell out of me. i owe you big time.
 
#5 ·
Joker23 said:
A generalized thread should be stickied for this issue. Loss of power at 4k-5k RPM, weird noise at WOT/4k-5k RPM, so and so forth. BTW, they go for two bucks at the stealership, pack of 2 generics for the same price at parts stores. :twothumb:

well i just called my stealership a few moments ago, they don't sell those pieces by themselves. They said i would have to buy a whole new intake.
 
#12 ·
Jordan_W said:
well i just called my stealership a few moments ago, they don't sell those pieces by themselves. They said i would have to buy a whole new intake.
That's total BS. I just went to the dealer last week and had the guy look them up to give me the price. Looks like your parts guy is a short bus rider.

Blu_GT said:
make sure u check your air filter. I found pieces of my rivets stuck in teh filter blocking it up...
Good advise. The snorkel the easiest place for them to go when they come out or break.
 
#15 ·
You know, a friend of mine here is having the same problem with his GTS...something about a loud noise at 4000 rpm. Dealer has had 3 cars come in with the same problem. The dealership pratically took one of the guys cars apart trying to find the problem. They couldn't so Mitsubishi is sending a tech this way to find out why all three are having the same problem. Not only that its reported in some other areas. May be a known issue coming soon. I will keep you guys posted about what they say.
 
#16 ·
There should be a factory recall to replace these turds with sheet metal screws or something, at least something that won't break every time you jump on the throttle. Maybe you should direct those techs at the stealership to this forum so they can learn something useful. Keep us updated.