Subaru Legacy TS-R Idle problems and no grunt up hills!
I have a 1999 TS-R with only 70k on the clock. It is really gutless going up hills, and even in 3rd gear it struggles. I took the car in for a tune up as it was pinking slightly too; they diagnosed a problem with the timing. After this, the car developed problems with its idle. It starts ok, but will not idle and promptly cuts out making it very difficult to get the car moving without revving the hell out of it! The same mechanic thinks there is a problem with the idle motor, but I am unconvinced he knows what he is doing. Any suggestions greatly appreciated!
Re: Subaru Legacy TS-R Idle problems and no grunt up...
Sounds like a classic example of cam timing which is different from ignition timing. It could be that one of the cams is a tooth out on the timing. It requires the front cambelt covers to be taken off to be checked.
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Manual transmission subarus have a 'hill holder' feature that is part of the braking system; when you stop on a slight incline, engage the clutch, and step on the brake at the same time, you can take your foot off the brake and the car will not roll backwards. When you go to accelerate and release the clutch the hill holder disengages and allows normal operation. I suspect that this feature was somehow altered when your brake service was performed. It's activated via a cable that is tied to your clutch cable; the hill holder cable toggles a switch on a mechanism that applies brake fluid to one (or two, depending on model year) brake calipers. I'd start here. If you google hill holder you should find some diagrams of what I'm speaking. I had a 1995 Legacy with this feature; I disabled when it began malfunctioning. Took 20 minutes as the bolt is in a difficult location but immediately noticed it was much easier to depress the clutch pedal. Oh yes, my malfunction was so bad (and improperly diagnosed by the local brake 'specialists') that the brakes would lock up while driving and I couldn't move the car! I destroyed my left front brake caliper before figuring out the culprit on my own.
Try changing the fuel filter. If it's been there awhile it's probably starting to clog and won't be able to flow enough fuel for the heavier demands the car has when going uphill or trying to accelerate hard.
SOUNDS LIKE YOU HAVE IT NARROWED DOWN TO THE EXHAUST SYSTEM.THE CONVERTER IS PROBABLY PLUGGED,CHECK THE TEMPS. COMING IN AND OUT.THEY SHOULD ONLY BE A FEW DEGREES DIFFERANT,IF THEY'RE ALOT HIGHER COMEING OUT IT'S PLUGGED.
I had similar problem with mine replaced the air flow meter and gave it a oil change and before putting oil back in I put 3 litres of auto transmission oil in it and ran in on full idle for 15mins drained that and then oil. This was from the advice of my dad who is a mechanic.