Search:

Good progress, thanks for this update. So no need to learn about starting fluid there.

If you get a chance ask that mechanic how he determined "no power" situation for the FP.

All we know for...

This article, along with its video, explains a few different tests you can consider running to verify whether your cat is OK or not.

I haven't run any of them myself.

Without answering your crossover pipe removal question your upcoming project (pulling the catalytic converter) may a good opportunity to at least take a good look at the cat itself.

Your ongoing...

About the original 85MPH speedo.
Yes, 120 would indeed be fine.

You can thank the Arab Oil Embargo, the U.S. Congress and President Nixon for the one in your car.
85MPH max speedos were mandated...

Answers to most of your questions here in bold. Performance figures are from car mag tests done in '81 or so with new DeLoreans.

There is another possible explanation to what you found.

Perhaps a previous owner somehow replaced a segment of the original (damaged?) return line and with a different return line between the...

Quoting two points from your post and asking separate questions about these points.

You report the engine runs fine (and has power?) until it warms up, at which point it loses power.

Question...

Would you care to evaluate your car's condition in order to set a fair price range?

Start with biggest factor, the car's condition. It appears yours is somewhere in the Condition #2-#3 range.
...

Adding to the spark comments - Yes, the report is that the car has spark after it dies.

Does it have enough spark, though? Maybe there is a condition that somehow lowers the ignition voltage at...

Yes, as others mention it could be on the transmission end of the system, not the shifter end. And we still aren't completely sure which shifter position gives which gear but if you know how it used...

Unlikely. The p bolt is part of the fore-aft half of the shift linkage. No effect on cross gates.

The owner’s reporting good performance in the fore-aft department. Good 1-2, 5, and R shifts...

OK.

Questions, assuming you don't want to wait for better weather to check the gear selections on the road.

With the current x-gate adjustment

1. Can you shift into R without lifting the...

Good progress there so far. Thanks for the update/photo. So the shifter sits in the 3-4 gate, not in the 1-2 gate? You found (maybe?) 5th a bit to the right? Looks like you know where to go from...

If you can see the pin now then tell us whether it is centered in that lockout slot when the shifter is at its center (rest) position. That's where the 3-4 gate should be. In your first photo it...

Good to have that photo.

Based on the photo your crossgate is adjusted with the shifter too far to the left. It's even possible that the 3-4 gate is accessible to you now if you use the shifter...

And this.

Item 3, wiper module, is shown as it is in that photo screwed to left side of Item 1, Plate Support.

The factory blower motor ground wire runs from the main bulkhead ground forward to the one of the spades on the double-male spade connector that's attached to the blower motor flange by one of the...

+1

The mode switch diaphragm is a known wear item.

A. Read the DMCH Knowledge Base article about what failed (the rubber diaphragm).

B. Buy and install one of these Mode Switch Repair Kits....

Nothing wrong with running an AGM in a D, only keep in mind that the car was designed to use a standard "maintenance free" (non-AGM) battery.

The normal issue of battery outgassing was addressed...

Thanks.

Update: that link now shows 2 rears are available. $119.63 ea.

That's a failure I hadn't heard of before.

So it calls for removing the old tachometer from the instrument cluster?

And replacing the tachometer?

Answers in reverse order:

A. I'm not using a sealed battery. Standard batteries don't lose water as far as I know.

B. I use nothing but Costco (Interstate private branded?) batteries in the D....

From post #2 there is still one diagnosis question to answer before locksmithing.

See boldface below. If you see the interior lock rocker move forward and back as you turn the key to full...

And while it was 4 or 5 months ago I was able to get a complete set of Kinergy STs in OE sizes from my General Tire retailer fast. Next day availability for the fronts and two days to get the rears....

More details around Michael's report...

At the moment TireRack shows rears becoming available starting 19-March.

Fronts showing as in stock.