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Everything posted by Fairtax4me
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If the pressure is dropping the bypass valve in the oil pump could be damaged or just worn. Also possible the pickup tube is not sealed properly (o-ring is bad/missing), or the screen is clogged, or the tube is cracked. Did you use RTV on the pump housing to block seal? RTV is known to have little bits break away and clog the feed ports to the rocker shafts.
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I have the relay buzz when starting my 96 but never have any issues starting, no flashing CEL or other weirdness. A loose terminal isnt helping anything, you should look into tightening that up. Did you install a lock washer there? Cranking but no start could mean the main relay is bad, as it supplies power to the fuel pump IIRC.
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Going off-topic for a second. Doing some digging about what Molybdenum disulfide is, found this article from MIT News: http://web.mit.edu/newsoffice/2012/graphene-molybdenum-disulfide-flat-materials-0823.html Appears MoS2 could also be the future of electronics. Anyway, just trying to understand exactly how this stuff works with the synchros. Molybdenum has long been used as a friction reducer, and is inherently bad for synchronizers because of its ability to fill the small voids which cause friction between two surfaces. MoS2 appears to have very good pressure and anti-wear qualities while still allowing enough friction for synchros to work. Not just that but it apparently somewhat increases friction in certain circumstances, such as between sections of synchronizers. This is what I can gather from the few articles I can find that actually reference it's friction qualities in Gear oils, rather than motor oil, and that aren't just speculation. It would be nice to find an article on exactly how it works when used in transmissions, what exactly about it allows it to prevent wear/ friction, but still allow synchros to work. I'll keep digging.
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Kinda seems like someone went along unplugging sensors to see what would happen. Or someone had the engine out and left the main harness unplugged. If the ECU gets no signal from the crank sensor you get no spark. They typically fail intermittently only when warm. If it were bad I would expect the engine to not start at all.
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Those nipples are usually fairly thick wall tubing. If it isn't leaking you might be able to wire brush it and paint it with rust preventive primer/paint. Drilling and tapping should be fine. I would probably use a non-pipe thread and coat the threads with pipe dope or Indian Head shellac before installing the nipple to prevent leaks.
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Auto trans has one switch with several contacts. It's actuated by a notch in the selector shaft on the side of the transmission. The shift cable has to be removed, and a couple bolts then it should pull straight off of the trans. It's on the passenger side and has a large wire harness connector plugged into it. You can remove the switch and test it with an ohmmeter before replacing.
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Paper gaskets can be used on a CLEAN flat surface with no sealers. If it is going to be exposed to oil, wipe the gasket with oil first. Otherwise it should need no sealant. If you need sealant it's because the sealing surfaces are not clean or flat enough. Ultra grey is not the same as Fuji-bond. It's not even close. Fuji-bond is far and away a better sealer than Ultra Grey. However, Fuij-bond is not practical to buy here in the U.S., and Ultra Grey works better than many other RTV sealers available here. Flange sealant works well for flat close tolerance gasket surfaces, such as between two machined pieces of metal. Engine block halves, transmission case halves, oil pump housing, that sort of thing. It will not fill large gaps such as the ones between oil pans or valve covers.
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Problem with ABS based traction control systems is they aren't designed to be constantly in use. A few seconds here and there is all the typical ABS system ever has to work, so if used as a traction device to prevent wheel slip for an extended period the pumps will overheat. ABS control units are designed to work in an instant and provide pulses that generate up to around 2,000 psi in the hydraulic lines, so they use high torque motors and actuator solenoids which are very power hungry. The ABS is one of the first things to be disengaged if the battery gets low, because it can cause a large enough electrical drain to shut the ECU off which would stall the engine. ABS traction control is also hard on the brakes, and can cause overheating of the pads and rotors if run for an extended period. In short... It sucks. You're better off with a locker, and I bet a locker is cheaper and easier to install.
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bogging
Fairtax4me replied to mojoman's topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX
Change knock sensor first. Chase misfire codes after because knock sensor can cause misfire and low power issues. Plugs aren't too bad if you move some stuff out of the way (washer tank,etc) and use a short extension and swivel or universal adapter on the spark plug socket. NGK or OEM recommended for both. -
27 degrees this morning and mine didn't seem bothered. The autozone something or other battery i put in it a few years ago started slower than this one dis this morning. I guess l see how it works out with more cold weather in the forecast. Any battery that's a few years old is going to be affected by temperature. And who's knows how that battery was treated before you got that car.
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bogging
Fairtax4me replied to mojoman's topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX
Any check engine light? Any recent work under the hood? When was the last tune up? When was the last timing belt change? -
missfire on a 2004 Chrysler pacifica
Fairtax4me replied to crazyman03's topic in Non Soob Cars and Bikes Discussion
Sounds like a fuster-cluck. Is there any other module that controls ignition on that car? Or do the coil wires go straight back to the PCM? Seems odd for a spark plug to affect a coil pack issue. I honestly don't see how that's connected. Are the wires to the coils shielded?