Question About Idle Problems?

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11-12-2003, 01:51 PM

adamrotor

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I am looking into buying an fd rx7, and i have found one but the problem with it is that it idles at 2000-3000 rpm. The seller states that it is due to the turbos, he also states that he took it to a mechanic which told him that it was due to the turbos that it idles so high and they do need an overhaul. The engine has 54000 miles, any thoughts.......

_adam

11-12-2003, 01:58 PM

wile_e_coyote

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Location: Honolulu, Hawaii

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I'm not sure about the turbos (people DO usually overhaul them around 60k mi, I think.)

Could be a vaccuum leak. If the idle is steady. If you have a pro do this job (highly recommended) it will cost you anywhere between $45-$100 for parts (rubber or silicone hose) and about 10 hours of labor. If they break any solenoids, it will cost $75 a pop. Be prepared to spend about $1000 to fix vaccuum leaks.

11-12-2003, 08:04 PM

adamrotor

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Would it be just cheaper and better to have the whole engine rebuilt w/ the turbos and getting all the new hosing for the car??? in the mean time. Rather than spend the money on that process???

_marcin

11-12-2003, 08:32 PM

wile_e_coyote

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Join Date: Aug 2003

Location: Honolulu, Hawaii

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I don't know about cheaper. I would rebuild the motor if I had the money. You'll have piece of mind knowing that you're car is working right from the ground up.

11-13-2003, 04:03 AM

Havoc

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Join Date: Jul 2002

Posts: 63

Correct me if Im wrong here.....

Are you sure the idle has not been wound up a bit to hold the idle high because it will not idle at lower RPM? If so then I think the motor has some serious issues. I watched a guy dyno tuning an FC till suddenly the motor refused to idle reliably below 2000rpm..... it had shat itself.

The turbos start smoking (in my experience) when they are on the way out rather than causing a high idle. IMHO you are better to ditch the twins if they are worn out and go single. My turbos lasted till 105,000km till they started smoking on start up, it is good to be rid of them.

A vacuum leak causing the engine to idle that high must be leaning it out quite a bit. I would think that in this situation you will be rebuilding the motor if you want to or not..cos its going to eat itself very soon.

I would check it out further before buying as a motor/turbo/hose job is gonna set you back some serious coin.

11-13-2003, 11:53 AM

adamrotor

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Hmm well when ill be purchasing the fd ill be planing on rebuilding the motor right away if it has any issues, but im not to sure if some of the prices that i have seen only include the engine rebuild or also the hosing with it??? but if anything ill be planing on replacing everything in it if not to expensive , im gonna research abit more on that. The guy is asking 10000 for it so ill still see.