Thread: Diagnostic soldiers- throwing parts in hope

Originally Posted by Roverlord off road spares

I'm amazed on the amount of parts that are replaced on Land Rovers with people with Hawkeyes, Nanocoms etc. Often the part purchased did not fix the problem.

These diagnostic tools give an indication of a probable failure. Mafs are replaced, TPSs, crank sensors, etc etc etc. I shouldn't complain, it's good for business. But a little knowledge can be dangerous and costly.

I'm amazed at the people that keep throwing money and parts at their Landies and the problem is still not solved. The process of elimination.

Mechanics and so call Land Rover specialists also replacing parts AND CHARGING FOR THEM, when they didn't fix or wasn't the cause of the problem in the 1st place. These diagnostic tools should be used as an "indicator" of a problem, why replace a part when it it might have been was a bad earth or a dirty connection.

A Landy specialist in Melb told a customer his turbo was U/S and at a cost of $1800 plus labour, going elsewhere was later to be found by another mechanic to be that a exhaust manifold nut was loose. So what happens if the 1st place replaced the turbo, would they then own up and swap the old one back as it wasn't the problem. ( I don't Think So)

A customer purchased a new MAF from us, I later get a call from an interstate mechanic asking me for advice, why was the customers car running the same with the new MAF we supplied, I asked him why did he replace the MAF in the first place?
Oh, his snapon diagnostic system told him the maf was faulty as it was giving certain readings.

Diagnostic tools as I said earlier, are a tool that is used as an indicator, and not to be seen as a Bible.

I shouldn't be unhappy about it, at the end of the day it's money in the till.
cheers, Mario

So which function on the Nanocom diagnoses a faulty turbo?

Originally Posted by OffTrack

So which function on the Nanocom diagnoses a faulty turbo?

Exactly Marios point I would have thought. The Nanocom doesn't diagnose anything. It gives information to the user to help the user diagnose a problem.

Too often people read an instrument and take the data as gospel instead of using their brain or to the exclusion of other information.

As the OP said............'Diagnostic tools as I said earlier, are a tool that is used as an indicator, and not to be seen as a Bible'




Deano

Originally Posted by OffTrack

So which function on the Nanocom diagnoses a faulty turbo?

Not saying a Nanocom detected a "turbo fault", as the place in question would have had a textbook or similar. I don't know how they arrived at their conclusion. I was using it an example of throwing unnecessary parts at vehicles guessing , which is an expensive exercise. Once the part is fitted, there is no returning it if it wasn't the 'cause of the problem

Right On Mario

My Nanocom keeps telling me i have Glowplug Overtemp Alarm, Transmission Overtemp Alarm and a AirCon overtemp alarm,

Hows that possible, there are no Transmission sensors on a Defender, The GlowPlugs are supposed to heat up (they dont have sensors either) and Duh, we all know the A/C runs hot (no sensor on that either)

So If I believed my Nanocom you'd really be in the money.

The truth of it is, people just love spending money on their LandRovers.

Tell me about it. Car was down on bump stops and suspension would not exhaust correctly and according to all the forums it was a duff compressor. So got a new compressor from Paddocks (for half the cost over here!!). Sent the car in to LR Brisbane for it to be fitted. They fitted the compressor and said the Ride Level Control module was faulty so fitted a new one of those. They then supposedly tested it all and all OK. Got almost home and got a suspension fault. Rang them back with the problem codes and they now say the new compressor is faulty. So at the moment I am $1500 down and a new compressor and they still haven't solved the problem. The service at the Fortitude valley dealership has been absolutely rubbish. They have also damaged/broken the compressor cover and the air conditioning no longer works!!! To say I am miffed is putting it politely.

Ivan

Originally Posted by Roverlord off road spares

I'm amazed on the amount of parts that are replaced on Land Rovers with people with Hawkeyes, Nanocoms etc. Often the part purchased did not fix the problem.

These diagnostic tools give an indication of a probable failure. Mafs are replaced, TPSs, crank sensors, etc etc etc. I shouldn't complain, it's good for business. But a little knowledge can be dangerous and costly.

I'm amazed at the people that keep throwing money and parts at their Landies and the problem is still not solved. The process of elimination.

<snip>

Diagnostic tools as I said earlier, are a tool that is used as an indicator, and not to be seen as a Bible.

I shouldn't be unhappy about it, at the end of the day it's money in the till.
cheers, Mario

Mate, you're spot on...

We saw a rush of that sort of thing when the Nanocom came out and users here started buying them and connecting to their vehicles

Knowing how to interpret, what is relevant and what is 'ghosts in the machine' is also important...

A little knowledge is dangerous...

Sometimes, its a case of "ignorance is bliss" is a better scenario.

So, Mario, do you get a large stock of Wastegate modulators in for winter each year?
Given the number of threads recently that invariably started with "My TD5 is surging , so I replaced the WMod and it's still doing it....."
Honest question.


I have been guilty of not following diagnostic procedure in the past, but the expense taught me to look, listen and think a bit more.
Thanks, Dave.

Please note I am not knocking any of these testers as I use them myself, but they need to be used as a guide to provide an area to look and investigate further.