ChrisWhewell

You're probably right. I should have changed the fuel filter years ago, but I failed to do so. So, since I have the new fuel filter anyway, I could pull the old one off and maybe blow a little compressed air, but, maybe that would blow the sock off, haha. Funny, I disconnected the fuel line from the fuel rail and tried suction , to suck out the gas but had a bear of a time, and it was not productive. Perhaps the fuel filter is so clogged up that the pump could'nt pump against it. Or else, it could be the fact that the pump is 34 years old might have something to do with it :)

Thanks. Maybe I'll force some xylene in a reverse direction from the hood bay into the fuel line w/hope of spinning the impeller in a reverse direction and the solvent would dissolve any thin film of boogers inhibiting impeller spinning due to olefinic polymerisation.

Hi, I dn't want to post a "for sale" in the wrong place, but I could't find any "for sale" section on the Reatta column. it appears my fuel pump went bogie and I realize that the windshield might bring a good price to a needy person, then after that, the brake sensor wires, speedo console, wheels, seats, LN3 eng., trans, visors, cat, wiring harness, 4 new tires w/zero miles unmounted, headlamp assemblies hardware all perfect, et cet yada yada. I also have a couple antenna's which Barney rebuilt, one out in the shed, never used, and a spare set of center hubs. Everything is good except fuel pump and the car's only got 60k on the clock. red, 1990. Apologies if I posted in the wrong place but can't find any link or reference.

Hi, thanks. My limited understanding is that the under-hood grey wire which terminates with a green connector just hanging there is itself in effective electrical contact with the motor of the fuel pump. I re-measured the ohms and got 38 ohms in a second sampling, which I'm inclined to attribute to contact resistance given the apparent discolouration likely stemming from oxidation from the thing just hanging there for decades In some modes of failure I might expect an open, or infinite reading, and another mode wherein possibly a short circuit in the motor winding or elsewhere would yield a zero ohms reading. But to get 38 ohms is odd, but yet still shines a glimmer of hope that it may be a dirty connection somewhere. With 38 ohms at 12V that only permits c.a. 1/3 ampere of current to flow, which is clearly not sufficient given the fact that the fuse is a 15A fuse, suggesting normal operating current is around maybe enough for the pump to dissipate approx 25Watts, so, a couple amps. Temptation arises to jolt it with 60 VDC just for S&Giggles, since I"m sensing it might be time to part this one out as I've found other matters to spend what little time I have left on ! If the grey wire dangling with green connector is not in effective electrical contact with the power input to the pump, I'd sure like to learn of a convenient access point, thanks for your reply !

Haha, lucky me ! I let the 90 sit a couple years and when I went to start it, no dice. Spraying ether into the intake made it fire up momentarily however, which is nice. But, applying +12V to the green connector by the brake booster results in.... nothing. No sound from fuel pump. Fuse #8 is fine and the relay is good. So I s'pose it's time to pull the tank, ugn. One last question.... does anyone know where the ground wire for the in-tank fuel pump runs ? I'd like to check if it's grounded b/c maybe that's the problem and if it turns out to be a simple ground connexion fix, I'll buy myself a bottle of beer !!! Thanks a lot, hope y'all are doing well. EDIT: I checked the resistance btw. the green connector(gray wire) and chassis ground, it showed 70 ohms.

Well, a different perspective I have maybe, I see 6500 as a great bargain for a good running car (if your inspection shows no major issues), in this economy that's a sweet price, and as Barney E. wrote, these cars go 200k mi. easily. good luck, a new motor is usually never bad !

Let me add it could be a poisoned or otherwise iinoperative NOx catalyst in the converter. I replaced mine with an aftermarket one about 7 yrs ago, b/c the exhaust seemed smelly when I went WOT on the hwy. I think I only paid about $80 back in '16 for it, but kept the old one. I wonder the value of the metals, in the 1990 Reatta convertor. I bet there's rhodium in it.

Anybody know the approx. original sticker price for that car ? cheers to all,

True !! I had that more than twice. Some graphite spray is nice, although they probably have a newer lube for that by now.

Maybe the data going to the engine is b/c a sensor or system is telling the pcm that the ambient air temp is very cold, and it is running in fast idle cam mode. Although, 1600 revs is a bit high maybe for that interpretation. Vac leaks always 1st suspect. Maybe consider to spray a little water mist around engine when its running and if vac leak, then it should cause a change in revs when misted. Does the transmission have a vacuum modulator ? maybe a hose is cracked

Probably not but if you are electrically inclined, you might consider to crawl under there and jump the solenoid terminals, and see if the starter engages and cranks the engine over. If so, that rules out the starter motor... i believe....

hunh. ya learn something new almost every day, like today I learned that Evinrude was building Two-cycle V8's for several years but quit in '95.

"However Captain, sensors also indicate that Suzuki sold a LOT of 2-cycle cars for a long time in the Orient, and those cars had MPG ratings in the high 50's." 2-cycles make great sense. In an LN3, some cooling mods might be needed. Certainly somebody on U-tube did a 2-cycle conversion of some 4 cyc. auto engine.... I'll check after dinner wait wait, this just in !!!

Maybe someone said it, but the electrical connections on our cars was.. "special". A reverse-grounded car presents "negative" consequences, some outside the usual experience. When mine wouldn't start once, I went through every connection I could find, disassembled it and sanded everything and put some conductive electrical goo chemistry on them all junctions. It worked, but I never learned where the problem was, instead all my connections were sweet so it is good piece of mind. There's probably some procedure in some manual for trouble-shooting the no-start situ

I know what to do now, to increase engine output about 65%. Convert the LN3 to be a two-cycle engine, to get one power stroke per rev. I guess just a cam swap and an ignition coils re-wiring. Or maybe it has a "spark waste" system on it, I forget but if so, put that wasted spark to good use !! Hahahaha, a two-cycle Reatta with a beautiful "scrubber" or converter or whatever so it puts out clean air, and voila, instant 38 MPG !! Easy weekend project, but it would take me months. Hahaha,