Recent content by driller

The crankshaft position sensor output is an AC signal to the PCM which I believe is approximately 1 volt or less in amplitude. I think most tachometers signals are a 0-5 volt square wave. I'm not sure what the result would be tapping only 1/2 the AC signal from the crankshaft position sensor? I...

All Mark VIIIs had a tachometer. You can use a MSD tach adaptor if the CPS signal doesn't work out for you.

I haven't found any increased longevity with any AGM battery other than the Odyssey brand. That being said, a battery tender is highly recommended for any non-daily use for battery life, even with AGM batteries.

My opinion... The oil filter adapter gasket is your primary problem to address immediately. If the transmission is slipping and it's not low on fluid, save yourself time and money and plan to have it replaced. While not rocket science, I wouldn't recommend any DIY transmission work if you're...

Prioritizing: 1. Oil filter adaptive gasket 2. Transmission fluid/filter and J-mod with transmission cooler added 3. NEW alternator - not remanufactured 4. Valve cover gasket kit

Yes, absolutely the Mark VIII is designed to retard timing to reduce power in elevated engine temperatures. It is not as sophisticated as a 'limp home' mode but it will loose power. IMHO, there is air trapped in the coolant system. Typically the temp gauge will lie to you because the...

That is thankfully uncharted territory for me and I don't have any knowledge of any tips or tricks. I don't believe it is a very common repair (unlike the Gen2 blend door issue). Sorry I can't be of any further help.

Best of luck finding traction with the Kenne Bell. LOL

When you jump the pins on connector C2, you are grounding the motor drive circuit and it will not stop until you disconnect the ground. In operation, the feedback potentiometer indicates the position of the AC Temperature Control Door and it is commanded to move by grounding the proper motor...

Helm Inc., the OEM source no longer publishes manuals for the Mark VIII but you should be able to score a set off eBay.

On the 96, it's not a 'blend door' but technically known as an AC Air Temperature Control Door and is completely different from the infamous 97-98 blend door. There is an extensive troubleshooting section for the system starting with the EATC unit self test. Diagnostic Trouble Code "02"...

I've always understood the rear height sensor was different from the fronts. Quote from the shop manual:

No one makes a specific kit for these cars. Basically most any kit for a modular engine can be made to work. The KB 2.1L can certainly work but you will need someone to tune it.

Usually just need to replace the four? rubber compressor mounts. They start to dry rot and then the compressor hammers them to oblivion. Been too long since I've done it to know where to get them now.

My late (RIP) brother-in-law 'borrowed' my Cadillac once. He claimed it quit running and we had it towed to a garage. Long story short, the big 500 cu.in. engine was seized. Upon teardown and inspection, I went to the garage to survey the damage. All 8 pistons were literally melted and obviously...