Thanks for this Bob - I am now confident enough to refurbish my injectors, hoses and paint the fuel rail (I have even bought the paint you recommended). I just need my car back from the shop where I am getting an aluminium radiator and twin electric fans fitted - to help with my own car’s hot running...

Nice video great tip on using the engine bar to raise compressor! Keep doing what your doing. Thanks again

I’m having the exact same problem and am following all your attempts right along with you! Checking fuel pressures and injection operation was on my to do list but now i will check those things sooner rather than later. Thanks!!

@alecnajarian

10 ай бұрын

Hey did you ever figure it out? I'm in the same situation lol

I use two ear clamps on the fuel lines of our 5.3 cars, including the injectors and fuel rail. The purists will hate it, but they are neat, super easy to remove when you need to and they never leak. Years ago I made a custom tool to be able to install them on the injectors whilst still on the car, nowadays though you can even get a pair of crimping pliers that lets you do that too. Hope you get to the bottom of the hot running issue soon - always a scary proposition with these engines.

@thecampchaoschronicles9567

2 жыл бұрын

Thanks for the info.

Another interesting and informative video, enjoying these troubleshooting episodes as well as the various other topics you cover. 👍

Bob, you are a machine.. lol.. keep up the great videos.. I've worked on so many of these British cars throughout my career,, you sometimes run to a corner and start crying while sucking your thumb.. lol.. I've learned long time ago, right bank always runs warmer, I always grab my very accurate temp gun, or if you're rich buy a thermo image camera... I would start reading temps at plug bases, than as close as possible across the water jackets.. than remove the heat shields and verify exhaust temps across each cylinder.... you would be surprised how much of a difference and a diagnostic aid it would result from. From misfires, lean conditions, flow problems, etc.. i teach my students to this day on new vehicles.. You already know this, but help others,, I don't know if it cost alot out there, but you can have a shop with emission equipment quickly test exhaust, printout for less than $100 here in Canada.. You should show everyone a quick test with your volt meter reading on the O2,, .1v lean,, .9v very rich, but unfortunately you have to have it gear... Or jump the 2 wires near ECU, into adjust mode... Good luck and may the tool gods be with you.. lol

Great program

I have had a similar issue with a pre-HE Vanden Plas, it turned out to be the thermostats, someone had fitted incorrect ones that did not have the feet to block off the internal bypass once the engine warmed up. I replaced the thermostats and the temperature dropped to normal and stayed stable. I later found that a major parts reseller had the incorrect listing in the catalogue used by the counter staff.

@lebojay

Жыл бұрын

This is a common story with these cars. The correct thermostats are hard to find. Gates brand works for sure. Many other thermostats listed as correct are in fact not correct.

Just a quick question, have you verified your temps with a thermocouple? The XJS water temp sending unit fails in such a way that they begin to over-report temps. This usually gets worse fairly quickly though eventually reporting correct temps as close to overheating.

If your back East could you have salt damage on the brass fins that dissapate heat from the radiator tubes

Just watched one of your videos where you used IronTite on the XJS, a possible contributor to your overheating issue?

@thecampchaoschronicles9567

2 жыл бұрын

No chance. The particles are minute, stay in suspension and keep moving.

I am looking at buying a 94 xjs with a 4.0 six in it It is the one with a silver top. Any recomendations of what to look out for.

@thecampchaoschronicles9567

Жыл бұрын

I'm afraid I don't do much work with 6 cylinders. Sorry.

My radiator caps aren’t sealing. That can’t be helping my overheating issue. Have you checked yours, @TCCC? They’re both fairly new, but it wouldn’t be the first time I ordered parts for the XJ-S that turned out to be wrong. 😠

@thecampchaoschronicles9567

Жыл бұрын

Both of them not sealing would be odd. More likely too much pressure in the system.

@lebojay

Жыл бұрын

@@thecampchaoschronicles9567 That might be good general guidance but in my particular case I think it is pretty likely that my filler necks are a bit messed up and/or one or both of my caps are incorrect. But for the sake of diligence and completeness, what might cause excessive pressure in my cooling system?

@lebojay

Жыл бұрын

Caps replaced. No difference.

The rear 4 cly. On the V12 retain the most Heat thats whyI think the stock radiator Can’t handle it especially in heavy Traffic an aluminum radiator with Twin Electric fans flowing 3500 cfm Is the answer

Do you anyone that does the same as your program (which is excellent) but works on the XJS as a 6 cylinder

@thecampchaoschronicles9567

Жыл бұрын

Thanks. No, I'm afraid I don't know of any others.

I Had this odd issues once, it ended up being the incorrect thermostats, they weren't closing the front bypass port all the way.

@thecampchaoschronicles9567

2 жыл бұрын

The cooling system flush is next and checking the thermostats will be part of that video.

@lebojay

Жыл бұрын

I just swapped out Waxstat thermostats for Gates. The Gates ones are noticeably longer, both open and closed. In my case it didn’t matter - my car still over heats - but it’s good to know the Waxstat ones are unlikely to close that bypass port.

@thecampchaoschronicles9567

Жыл бұрын

@@lebojay Flushing and thermostat inspection will be the subject of the next video.

Will the Jack Plate be available again???

@thecampchaoschronicles9567

Жыл бұрын

Possibly this winter when things slow down a bit.

@urielgiovanni1854

Жыл бұрын

That’d be great news. I’m willing to send an online payment for an extra used one.

@thecampchaoschronicles9567

Жыл бұрын

Uhhhhh...let's see how this one works out.

Hi, Mohammed here from the UK. I'm considering doing a harness change, would you know the connector part number / type I need please. Great vids keep up the good fight. 👍🏻

@thecampchaoschronicles9567

2 жыл бұрын

Hi Mo. This is the part you need. Available from a number of sources. www.summitracing.com/parts/rnb-85850?seid=srese1

@thecampchaoschronicles9567

2 жыл бұрын

These are the boots. www.ebay.com/itm/224074630043

@awaisaqsaimsal

2 жыл бұрын

Many thanks 👍🏻

So that's what you look like without a hat! I was wondering 😁 Out of curiosity why didn't you just rest the AC compressor on the radiator? Wouldn't it have been easier than using the engine cradle?

@thecampchaoschronicles9567

2 жыл бұрын

It's always a bad hair day here at Camp Chaos. The hoses for the A/C compressor are pretty stiff and the engine support IS really easy.

@richardp6178

2 жыл бұрын

@@thecampchaoschronicles9567 😀Yes I'll be replacing all of mine on Moby as soon as I replace my broken recycler! God forbid I loose any of my R12!

head gaskets....a combustion leak test on the coolant system would make a quick diagnosis but beyond that... mls gasket replacement (if there is such a thing) or....a laser cut copper sheet head gasket (fab required :-) the horror in situ for the head removal/replacement.

@thecampchaoschronicles9567

2 жыл бұрын

The gaskets aren't leaking. It's the material betwqeen the fire rings and perimeter seal that turns to junk.

@gizmothewytchdoktor1049

2 жыл бұрын

@@thecampchaoschronicles9567 question. remember the 2.9l that used the single v12 head? i am looking for a pair of those intakes. there is a plot afoot. ;-)......

@gizmothewytchdoktor1049

2 жыл бұрын

.... thought you might be of help finding a pair as spare parts for jags appears to have a spot in your heart/collection. =dok=

Good news, bad news. Cars running smoother, but still no joy with the cooling issues. Great increase in fuel economy. Is that a HE engine? At this point I'd back flush the radiator, flush the engine and heater core, and new coolant. Good luck.

@thecampchaoschronicles9567

2 жыл бұрын

That's the next stop. It would have been the first check to make it the cooling system hadn't been replaced/reconditioned two years ago.

@jeffharrison5265

2 жыл бұрын

@@thecampchaoschronicles9567 Has there been any coolant loss?

@thecampchaoschronicles9567

2 жыл бұрын

@@jeffharrison5265 None.

@thecampchaoschronicles9567

2 жыл бұрын

It is an HE.

@jeffharrison5265

2 жыл бұрын

@@thecampchaoschronicles9567 Any chance the thermostat could be faulty?