jbeastafer

iTrader: (2)

My FD is starting to act really funny and not idle at the correct RPM. Is it time for a rebuild or do I still have some time before it needs one?

Sgtblue

iTrader: (16)

Whoa son. Based on the sketchy info in your post, jumping right to rebuilding is premature. WAY more information is needed before connecting those dots.
Exactly what is it doing? Do you have any engine modifications? Is this just recent. What was happening when it began. What have you done to trouble-shoot?

8_turbo2_8

Running funny and a weird idle could be as easy as a spark plug or bad gas. Give us some more info and we'll most likely be able to give you a better idea of where to start.

Have you done a compression test?

Have you checked for a vacuum leak?

jbeastafer

iTrader: (2)

It idles around 1k-1200 on a fresh start never goes lower until I start using the car. Once I start using the car whenever I brake it goes below 800 sometimes dips as low as 650. I run 93 octane in the car, I have not done a vacuum or compression test yet.

8_turbo2_8

So it idles high until it warms up? If so that's normal. And I would say it's a vacuum leak, small. Anything cracked going to the intake manis?

jbeastafer

iTrader: (2)

Not that I can tell of, but I can't be completely sure I don;t really know what i'm looking for

Sgtblue

iTrader: (16)

First thought is a vacuum/gasket leak after the throttle-body.

jbeastafer

iTrader: (2)

Is this something a novice could fix? I'm not very good with cars.

Sgtblue

iTrader: (16)

^The biggest challenge, at least for me, is finding the issue. Diagnosing. Vacuum leak is my first suspect, but there are other potential causes. If you're not an experienced wrencher, going through the Factory Service Manual and chasing things like this down is probably best left to a trusted shop. No shame in that. Point is, assuming you need a rebuild is way premature.

ZE Power MX6

iTrader: (157)

It does sound like some kind of vacuum leak, how many miles on the car, maintenance record?

jbeastafer

iTrader: (2)

I honestly don't know about the mileage as the odometer is out, but I've been changing the oil pretty regularly.

RobertC

iTrader: (1)

Where in Texas are you located?

Depending on the vacuum leak you might be able to hear the leak with the motor running. It will sound like a rushing of air where you normally shouldn't hear rushing air (or sucking air). If you are close to stock the higher idle might be from the Accelerated Warmup System (AWS) until it warms up.

Dreams_of_Rotary

Start checking possible vacuum leaks and if nothing run through, the plugs, wires, battery, alternator. If this is your only current issue, most likely not time for a rebuild.

RxHevn93

I concur with the other posts...simple vac or seal leak. My 93 FD always had a notoriously low idle, but was also ported. Motor is not blown unless it sounds like Harley with a cold, or you have coolant running out of your tailpipe.

Cheers,

AB