Category: Piston Slap

By on August 25, 2015

TTAC commentator TrenchFoot writes:

Hey, I’ve got a problem in that I like data. As an engineer and car enthusiast, I want to know more data points than the manufacturer thought I would/should. So I want to add some tech to my ride, and I want it all. The problem is, no one seems to sell the all-in-one solution I’m looking for.

I have a 2007 Chevy Express AWD 1500 (backoff with your comments, I love that van!), but tech in that rig is limited to a power locks. Since I use it to tow a smallish travel trailer, I’m always wondering about the state of the tranny. So my wish list is:
Read More >

By on August 20, 2015



Mmm… (photo courtesy:

TTAC Commentator sastexan writes:

Hi Sajeev,

Hope you are doing well. I haven’t seen a lot of activity from you on TTAC lately (but I haven’t been as religious a reader lately either between work and kiddos). I find it interesting what cars default to having their climate control (manual or automatic) on re-circulating versus fresh air. One of the things I like about our Odyssey is that it defaults to fresh air unless the cooling load called for is very heavy (in auto mode, in manual mode it won’t switch).
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By on August 18, 2015



(photo courtesy:

Brett writes:

Brett here. Got a weird one, or maybe it is not that weird since it involves a Chrysler product and electrical gremlins. My father drives a 2006 Jeep Commander, 5.7-liter HEMI, basically loaded. Overall, he likes the Jeep. It has about 104k miles on it. Anyways, it is his forth Jeep and he is having some weird electrical problems.

Imagine that, a Chrysler product with electrical problems… Read More >

By on August 13, 2015


TTAC commentator supremebrougham writes:

Hi Sajeev,

Sitting in my Grandma’s garage is her pristine 1997 Mercury Grand Marquis LS, with a whopping 24,800 miles on the clock. Grandpa bought it right off of Mr. Sesi’s showroom floor not long after he retired.

About two months ago, my Mom and Grandma took the car out for the day to do some shopping. They stopped by my house, and when they went to leave, the car wouldn’t start. I got in and noticed that when I turned the key, the fuel pump was not making any noise. Read More >

By on August 11, 2015



A loaded question? (photo courtesy:

Harry writes:

My daily driver is a ’99 Honda CR-V two-wheel drive I took over from my kid when she went to work overseas. It has been in the family since 2007 and has always been economical on gas, reliable and needed only regular service. It is fine for the 20 mile drive to work in suburbia — but we take our Pilot on trips because my wife refuses to ride in the CR-V. Read More >

By on August 6, 2015

Seth writes:

Sajeev (and your evil twin)

OK, you asked for it so here goes: I have an 2005 saab 9-3 5-speed convertible that is having issues.

I use it as a summer car. It is my third saab so I am use to some weird stuff. Last year, I parked it for the winter and everything worked. I lost my garage space for the winter so I had it under a car cover. When spring came my SID (Saab Information Display) did not work. I know the SIDs in previous generations were an issue but not on this model. As a bonus, my CD player also died, but the radio still worked even without its display.

So I get the SID replaced — really the only reason was so I could see radio the current station — by an independent Saab mechanic, but now the radio does not work. The indie said the amp is bad. The Saab amp setup (I have a 7-speaker, 150W ARC sound system, I think) is fiber optic and a PITA. He checked the fuses and said they are fine. It seems odd the radio does not work the minute the new SID is in. I can replace the amp, but it’s a 4-hour drive one way to do so and I would prefer not to kill a day to find out it was something simple. Read More >

By on August 4, 2015



Leather is better. (photo courtesy:

Nathaniel writes:


Long time listener, first-time caller. I’m responding to your plea for new Piston Slap questions. I purchased a gently-used 2008 GMC Yukon Denali AWD a couple of months ago. Other than its appetite for fuel, the only negative is that it has 141,000 miles. I believe the previous owner changed the transmission fluid at 100,000 miles (Carfax shows that the transfer case fluid was changed at this point, and I can’t imagine doing that and not doing the transmission). The fluid was relatively clean but I changed out several quarts via the dipstick tube using a fluid extractor after I purchased the vehicle, replacing them with the specified Dexron-VI. I believe the fluid level is correct but it’s difficult to read.

On a recent road trip, the 6-speed automatic (6L80E) transmission stumbled during the 2-3 shift while driving through the mountains and went into a failsafe mode. The check engine light came on. I pulled over, turned the ignition off and on again, and the truck operated normally. The CEL remained on for the next several ignition cycles. When I called OnStar to obtain the fault code, they could not retrieve it because the CEL was no longer on.

Read More >

By on July 31, 2015



(animation courtesy:

Evan writes:

Hi Sajeev!

How do people get your name wrong when it is in your email address? But that wasn’t why I was calling. My question: are aftermarket parts for brand spanking new cars sensible? Read More >

By on July 30, 2015




No surprise, the auto journo that insists on everything LS-swapped is actually a big ol’ fraud. Do as he says, not as he does with TTAC’s Project Car — a 1983 Ford Sierra Ghia previously reviewed with the promise of more to come.

Promises: kept.

Read More >

By on July 28, 2015


Just a city boy, born and raised in South Detroit (photo courtesy:

Thanks to the 40+ people who sent queries to Piston Slap over the week. I’ve insisted the satisfaction derived from our interaction is why I keep writing, that everything else is merely gravy. Delicious gravy, but just that. You’ve once again validated that fact. – SM

Bob writes:

Good Morning Sajeev,

I am asking a question about the headlights of my 2015 Fiat Freemont, 2.4-liter 4-cylinder variety. In particular, replacing the globe in the left headlamp assembly. In the manual it states to move/relocate the TIPM. On the forums there is nothing mentioned about how to remove this particular item, plus I read all the horror stories about the TIPM, unreliability, etc.

Read More >

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