That coolant tank was chooching nicely!

You forgot to disable fuel or spark, the engine was trying to start and that screws up relative compression tests. Great video

Great Hunt. Somebody needs a new set of head gaskets.

Basically, you should check your spark plugs, see which one has coolant residue and that should indicate which cylinder.

Sweet diagnosis along with some great Pico and in cylinder shots! Thanks!

Perfect diagnose Tom!. You made great use of your tools! Are you going to post the Repair?

Letting it run to 2bar (30psi) can easily burst the radiator, heater matrix and other plastic housings. Maximum coolant pressure is below 15 psi, the cap releases it beyond that so it doesn't damage other parts.

Have a question. I have a bug just like that color, blown head gasket. Like im watching you diagnose my car right now. I really want to rebuild my engine maybe have a little extra fun (power) to this thing. Is it worth putting money into it and doing a rebuild or is it just a waste of $$$. Thanks.

Nice, new guy at positive lead diagnostics :D

Great Video. well I guess time to ship to the crusher. it's a 17 year old VW, so most likely the repair cost will be higher that the cost of the car

Hey Tom thx,I enjoyed the vid...awesome job man...and also nice look...cant wait for ur next vid...👍

Thanks Tommy always love watching your vids very informative.

most excellent video . thanks for taking the time

Try a firstlook pressure sensor on the reservoir and trigger one coil. That is a quick way to find the offending cylinder. The increase in the pressure waveform will match the ignition coil with the firing order.

I don’t know if you’ve realized, I’m sure you have but fuel should have been disabled on the relative compression test because the partial combustion was throwing off the results. At least this will be good for any one else watching.

Thanks for some GOOD info and brands to go off from sir :)

great diag Tom thanks liked the relative comp waveform scope capture

Hahaha!! Fresh trim!! I love fresh trim!! Over 18, fresh trim!

That was fantastic tom ,well done. Ste fro the uk.

Nice captures with the Pico Tom, great demonstration

NOT VERY COMMON BUT IT HAPPENS TO THE BEST........CAUSE THIS ENGINE IS THE BEST BY FAR AT THE WHOLE BRAND MY FRIEND.....

Love your videos man. Nice to have a german channel. !!

Excellent job

Ever try having the pressure gauge hookeed up and blowing air into the cylinder using a leak down tester(around 50to, check for a pressure increase on the tester. Cheaper way (but messy ) fill the overflow / pressure bottle to the top with water then blow air into the cylinder, watch out for the geyser lol

Wish you could come fix my beetle!!!!

Hello today my daughter's 2000 beetle won't start....she was driving on the road, car got hot,all vapor was everywhere, she pulled out wait few minutes and continued driving until the car won't move anymore, I came up to check it out, was coolant all over,fill up coolant try to get it started but nothing cranks but no start, should I change spark plugs or just have a technician look at it...?

Never listen to previous shops/recovery mans idea of problem as they always go for worst case scenario!. Start with the basics.

Nice vidéos and newlook

Nice work Tom =)

You’re a genius 😱

Another beetle owner that ignored the red blinking coolant light.

Great video if you would have pulled the plugs with the pressure in the coolant tank could you have found the cylinder that was leaking when you took the plugs out thanks again

Always interesting and informative. Thank you for sharing. I am curious; approximately what percentage of cars are misdiagnosed as this one?

Nice dinostics using the borescope.

thought I was on the wrong channel with that shiny mug :))

Hi Tommy, I barely recognize you! Lol. Nothing better than the Pico Scope! As a tip, when I get an image like the one you got from iATN, I use paint to draw a line to see where the two signals meet, specially like this one that signals are so far from each other on the capture.

they were most likely right on previous diagnosis, but customer and pencil pusher department twisted it around or perhaps easier than explaining why a working timing set should be replaced.. someone pressure washing in other bay?

Man you are great Perfect video as usual

Good job

Hey keep it that way

Why no video on the repair? I learn a lot from you!

Nice job

In Europe, especially in the less rich parts of it, head gasket jobs are nothing unusual. Mostly because the gasket starting to leak by itself for the vehicle's age, but even after an overheat condition they do that.

See this is my issue, just not a coolant smell. I went to change my plugs and realized I needed a special tool to do it so I put the manifold back on, bolted it up, connected the vacuum lines up and now it won’t start and I smell gas as if the injectors are firing but the plugs won’t fire them. Except the car ran perfect this evening when I parked it.

I had a whole upper radiator tank blow off in my face and took a scalding hot coolant bath. had a hose let go all over me also. both times were "Chrysler products" with bad head gaskets and the systems loaded with sealers on arrival.

I had the crankshaft position sensor replaced last year. Now I cant get my car out of park and it shakes while it's on. The EPC light is on.

Hi Tom when you did a relative compression test did you cut the fuel pump or ignition etc ... I think that the compression was not accurate because it was trying to start I think now what I think happened is the plastic water pump impeller broke or slipped so the engine overheated then blew the head gasket then it melted the side flange then they replaced the part filled the coolant system and the car did not start after could you remove the thermostat then check if the water pump is broken but I could be wrong about the pump it’s just that I saw lots of broken pump.

I have a 2001 beetle glx turbo...every time I get one thing fixed.. something else is wrong

Nice video bro! I have same problem with my vw jetta 1.8t, i dont understand which one is the real solution to fix a problem????? :(

great video, where do you get your known good waveforms ?

Why did you release the pressure from the pump/gauge. I'd have left it in there save me pumping it up again

Is "relative compression test" definite proof of mechanical issues?

Just before Christmas

Hey buddy how do I adjust the headlights on 2000 Beetle

good job bro

You'll need some form of i d to get into the bar now tommy wolf 😜

So, the coolant bottle should have some pressure, but not too much?..i mean, if compared to the radiator whats the difference between those two?

Qué tal amigo ! Tengo un auto igual y tiene una manguera cortada me podrías ayudar? Gracias

So the garage that sent was right it needs timing and head ? Isn't that what they suggested ? Since its badly rattling

The old beetles were great to work on, I removed the engine from one and changed the clutch put the engine back in 17 minutes single handed.

can i ask you where do u buy the coolan pressure tester

What's all that noise

HC and CO readings out of the coolant bottle will tell me inmidiately that a head gasket problem, took you to long to find out

Nice diagnosis Tom! How do you like the Pico?

More than likely not a hg but a cracked cylinder head from overheating at some point or from a porous coscast head and not a Germany casted one,

Is that a diesel?:) 17yo vw, nice parts car.

it cranks like a diesel so why not take out the plugs straight away to see if some liquid is causing higher compression

Why is the crank sync different as the knonw good crank sync ?

Hey bro nice video I have Audi TT with same engine it does crank but doesn’t start and obd scan tool found code P0864 TCM communications circuit range performance. Pls could you tell if I have to replace the tcm or it could be just wiring Cheers

Just jumping in for our story about our 'lovely' 2000 beetle. Might assist someone else? we lost our speedo. Gear changes all over the place! Poor running. The first few models had temp sender UNDER water fill bottle. A SEAL eventually perishes and will PUMP water through the WHOLE electrical system. ( through sheath) Fry the computer, even FILL the rear tail lights with water! We found a VW Tech bulletin on the issue! About 2003 the sender was moved on top of water bottle. Cost us thousands.....so be warned

Are you old to be working on cars lol by the great vid

No more unibomber look

Stupid question: Can someone explain how to find good wave-forms on iATN? I have a premium account and I've searched the site but I come up with nothing.

Do you work at a carwash

Head gasket and more

Have 2008 Jetta with a safe light on starts won’t stay running can you please tell me what is wrong??? Thank you

Coolant maybe leaking into the crankcase too

25 minutes to reach that conclusion..... good thing you don't do flat rate work 🤣

This is the kind of guy i would stay away from

why the hell would you crank something that jumped time?!!! trying to sell new valves too? thumbs down