Piston Slap: An Exedy-ous From Logical Clutching?
I’ve got a 2003 Impreza WRX (blob-eye) that’s covered 96,000 km now. I bought it two years ago from the original owner, who seemed to take very good care of the car (every receipt since new). The car has been almost faultless.
About 4,000 km ago, at 92,000 km, the original clutch was clearly on its last legs. Under wide open throttle in 3rd gear, the clutch would slip and struggle to get power down. So off it went to a local WRX specialist to have the clutch replaced with a new kit: new pressure plate, machined flywheel and new Exedy OEM (standard, not heavy duty) replacement clutch.
However, when I got the car back, it felt completely wrong.
Piston Slap: A Triumph Over A Sticky Clutch?
TTAC commentator krhodes1 writes:
Here is one for you and the B&B: ’74 (more or less) Triumph Spitfire with a clutch issue. The clutch feels “sticky”, doesn’t release smoothly, and makes starting off in first a little challenging. Otherwise, the clutch works fine once you are moving.
Piston Slap: My Pick Up's Failing Clutch Pick Up?
TTAC Commentator halftruth writes:
My 2012 Tacoma has a temperamental clutch. Sometimes it catches high, sometimes low. This is most annoying on a grade when the pedal comes up and very little happens, then — boom! — it grabs all at once or it catches a little at a time and eventually works as it should. The ambient temperature does not seem to matter nor if the truck is hot or cold.
I noticed the pedal linkage is all plastic and has lots of play in it. I have also noticed this in other Tacomas of the same generation. I did adjust the actuator gap as it was way out of spec at about 8 mm, but it did not make a difference.
Piston Slap: Justy-fied Freestylin' Over CVTs, Part IV
I enjoy reading the piston slap series.
I have a 2009 Altima with the 2.5 4 banger and the CVT transmission. I’m not a big fan of the CVT, but it works ok and gets decent mileage. I bought this car as it was the cheapest car I could find that fits 4 adults and qualified me for the cash-for-clunkers handout. I didn’t expect to keep it long or pile the miles on it this quickly but now it has 90k on it. I mostly drive it without any passengers as we now have 3 kids and the minivan gets used for family duty (just had one kid when we bought the Altima). I’m trying to decide if I should hold onto it or sell it – it’s kind of at that point where if I keep much longer, I’ll probably end up driving it into the ground.
Piston Slap: 2 More Years From the (Mazda)3?
Long time reader first time writer. So here is my dilemma.
I have a 2007 Mazda 3 sedan 2.3L with a 5 speed manual that currently has 97,000 miles on it. It is modified with a Mazda branded CAI and cat back exhaust. It’s been a pretty much trouble free car for its life. I’ve always maintained it in terms of tires, brakes, suspension, and oil changes every 4,000 miles. This summer I recently even took the car round trip across the country. Before leaving for that trip I had the power steering fluid, brake fluid, and coolant fluid flushes and new spark plugs. I also had the strut mounts replaced and the rear shocks done.
So after getting home from my cross country road trip I let the car sit for two days. When I went to start it up it would crank a bunch but no start up until I cranked, stopped, and cranked again. The mechanic confirmed my suspicions when he said it was the fuel pump, more specifically the check valve. He said replacing the pump could be close to 800-1000 dollars.
Piston Slap: Blogging About Engine Bogging
I have a question about driving style that I’d like to pose to you and the B&B. Part of my highway commute is a steady 2 mile grade. With a running start of 75 mph, my 2007 Mazda B2300 slows to about 62 mph by the top of the hill when I keep it in 5th gear, with the engine turning about 2000 rpm. I can maintain 70+ if I drop into 4th and floor it, but I’m a cheapskate at heart. My question is, is it really more efficient to lug up the hill in top gear, or am I just kidding myself and doing irreparable damage to my engine?
Piston Slap: 4Runner to A New Life?
TTAC Commentator Ralph Schpoilschport writes:
Got a quick one for you and only asking because you begged! But. I am preparing to make a 3000 mile one-way trip from beautiful Vermontto, well, not so beautiful southern CA. My rig is a 1997 Toyota 4Runner (V6, 5 speed manual). Known problems: leaking rear diff (rust cracks) and a muffler on its last leg. Spark plugs, starter, timing belt and water pump are recent repairs/maintenance. As I type, an attempt is being made to seal the rear diff. If that is successful I am having the mechanic give the chassis a once-over.
If the inspection is clear or things are easily fixed I am planning on making the trip with this car. I figure the car is worth approx $2500 – 3000 as it sits. Am I nuts?
Piston Slap: Weather The Storm, Trooper!
I have recently come into possession of a 1994 Isuzu Trooper (pictured above). 158k, One owner, with good service history until 100k. After that the (affluent) previous owner basically used it as a Home Depot Hauler for 7+ years so besides oil changes and tires, not much was done. That’s fine by me as the truck cost $1600 and it is pretty great running shape.
ZF's 9-Speed 9HP Transmission Puts Dog Clutches On The Leash
In a week we will post our first full review of the all-new and all-controversial 2014 Jeep Cherokee. The new Jeep isn’t just raising eyebrows for the love-it or hate-it styling. Or the resurrection of the Cherokee badge. Or the constant delays in production. Or the transverse mounted engine. Or the lack of solid axles. None of that laundry list seems to cause as much discussion around the automotive water cooler than ZF’s 9HP 9-speed transmission. Click past the jump for a deep dive into the tranny with more speeds than my bicycle. If you don’t want to explore transmissions in detail, don’t click. You have been warned.
Piston Slap: Deffo Not Your Father's Oldsmobile!
Long time listener, first time caller. I have a 1982 Oldsmobile 98 Regency Brougham, that last summer I ripped the 307 out of. It now has a Chevy ZZ4 crate motor, backed by a TH 350 transmission. (Gasp! My hero!!! – SM)
Piston Slap: The 3rd Clutch's the Charm?
My winter car is a 2001 Focus, 170k, duelcam, with a stick. At about 155k the original clutch was replaced. A year and a half later the replacement clutch was replaced. Now the car is in my hands, roughly a year from the previous replacement, and the clutch is in dire need of being replaced. My local trusty mechanic does not do engine and tranny work because he doesn’t want business to back up with tear downs. That’s fine, but I asked his advice anyway.
Mrs. McAleer Rows Her Own.
As noted in a triumvirate of TTAC reviews, the Scion iQ is a fun little box that’s hobbled by a somewhat crappy CVT transmission – though, it should be noted, not to the “’Tis but a scratch” extent that the SMART is de-limbed by its godawful gearbox. The above text message was received from my wife after she drove one briefly.
Naturally, after telling her how disappointed I was in her total lack of ethics, I felt rather pleased. When I met Katie, she was a dedicated cyclist and transit-taker who hadn’t bothered to get her driver’s license until her early twenties. With a series of Acura mid-sizers rotating through Dad’s driveway, she regarded the car as either an appliance or a necessary evil.
And then, along come I with my idiotic fervour for the things. Sure, I gave up my first car for the engagement ring, but when we got married I bought a Ford Escort GT with a 5-speed and set out to teach my new wife how to drive it.
It wasn’t easy. There were frustrations and setbacks, tantrums and whining and sometimes I thought the tears would never stop coming.
She wasn’t that thrilled about it either.
Piston Slap: Demand Satisfaction…via YouTube?
TTAC commentator hidrotule2001 writes,
I’ve got an intermittent, befuddling problem with the manual transmission in my 2011 Ford Fiesta: The shifter will periodically refuse to move into 4th gear.
This usually happens 10-15 minutes after the car is started, and mostly during warm weather (but I’ve never been able to consistently reproduce the behavior). When i say it refuses to move into 4th gear, I mean with the clutch fully engaged (peddle to the floor) attempting to move the shifter into 4th position feels like trying to shift into 1st gear when going 60 miles an hour; like there is some sort of synchro problem.
Moving the shifter back to the neutral position and trying again doesn’t change the behavior (the shifter never gets far out of the neutral position to begin with). Down-shifting to 3rd, and then trying to shift again does get rid of the problem (at least so far), which is why I haven’t been able to demonstrate it to the dealer.
The car is 100% stock, and only has 10.5k miles on it. I’ve done some searching on various forums and the closest I’ve found is a couple of posts on Mustang forums with similar issues where the transmission fluid was low, but I’ve had that checked and everything is within spec.
Any ideas on what might be causing this? The problem is an annoyance right now, but I wonder if it might indicate an underlying issue that could get worse as time goes on…
Piston Slap: A Lifted Lone Ranger?
My 1999 Ford Ranger XLT is starting to come under some serious wear. I got it a while back and thought it was good enough, an upgrade considering my dog grew to be 70 lbs and didn’t fit into the back of my immaculate 1996 Acura Integra hatchback. I needed to upgrade in size so I did.
Now, this truck came with a few ridiculous caveats. With 140k on the clock, it’s starting to enter my personal danger zone for cars. Additionally, it had a big tow package on it, a 2 inch body lift and big 33” by 12.5” tires on it. Did I mention it has the smallest 3.0 V6? The previous owner did not regear the truck and therefore it’s a bit sluggish. Upon inspection of the truck after removing the bumpers, which were improperly re-installed after the body lift, it looks like whoever did the lift cut parts of the frame near the rear of the truck. It’s looking worse and worse.
Piston Slap: There's a Rattle on the Frontier!
TTAC Commentator Benderofbows writes:
I always enjoy reading Piston Slap and want to ask about my truck, a 2007 Nissan Frontier with the VQ40DE (4.0L V6), 6-speed manual, and 42k miles. Sometimes the truck will rattle while accelerating at around 2200 RPMS. This only happens after completing a long freeway run (an hour or more) and occurs in every gear regardless of throttle position. The noise goes away after a few shifts or always after the truck has been shut off and restarted. It has been going on for 6 months or more (it took me that long to figure out how to duplicate it) and doesn’t seem to be getting any worse, plus it doesn’t trip any check engine lights. I can’t imagine how to replicate the noise for the dealership service department. Any ideas? Computer issue with the air/fuel mix maybe?