Rev up your engines, M says scotty I cleaned the MAF sensor and
now the engine idles rough what did I do wrong, ok Maf sensors measure the amount of air going
into the engine, if you're going to clean a MAF sensor in any modern car what you really
should do is, remove the MAF sensor from the car, take it off, then clean it and only use
MAF sensor spray, their very delicate things and the thing about MAF sensor cleaners are
they completely evaporate leaving no residue, if you use carb cleaner or something else
it can leave residue, but you use maf sensor cleaner and clean it
off the vehicle, then let it dry for an hour or two it will be completely dry then you
put in on and you can't hurt anything, if you cleaned it on the vehicle and it was still
plugged in the cleaner and the electronics could have shorted things out, I've seen that,
now if your luck and you didn't damage anything, some cars if they have a really dirty maf
sensor and you clean it and now it's got a clean one that confuses the computer but after
you drive it 2 or 3 days if it goes back to normal they'll often do that and the software
is just recalibrating itself, so if it starts running better in a few days that's what happened,
gomes, I have a 2000 acura integra and I changed my fuel pump and now my car keeps flooding
out and won't start, ok I actually see that often when other people work on cars, it's
important to get OEM original equipment manufacturer fuel pump for that vehicle, if you go out
and just go to the cheapest discount auto parts store or online and buy one of those
Chinese knock off pumps a lot of times they won't work,
your fuel injectors work by a certain pressure and it's a very limited range of pressure,
say if it's like between 47-50 psi, if you get an aftermarket pump and it puts out too
much pressure that's exactly what will happen, if it is flooding out from too much pressure,
first thing you'd want to do is change the fuel pressure regulator if you didn't do that,
the regulator is suppose to regulate the pressure and when it's shot it won't and then it goes,
so you change that too, but on most modern pumps when you buy them,
the pump and the regulator is often one piece and you replace them both as a unit so I would
check the pump and the fuel pressure regulator that you put on, it could be that you just
got a bad one that wasn't manufactured right and I see that all the time, sure they cost
a lot more money for the OEM ones but their much better quality,
magic says how do you find a bad ground, well realize that everything in your car that
works off direct electricity has to have power but it also has ground to connect the circuit,
you do a ground fault test, you just get a meter and you measure the wires
between the ground wire that you got and the negative battery terminal, you connect it
to both, and if your losing more than half a volt between it the ground isn't any good
and it needs to be replaced, a lot of times it's obvious you'll see corrosion, you take
it off and clean it all of with a wire brush and then put it back together and then paint
over the top of it with anti corrosion paint so it won't corrode anymore,
but you get yourself a good meter you can check any ground it's a simple ground test,
it's not that complex to do, the hard thing is finding where the grounds
are because they hide them all over the place, you often need a manual for that,
orion says scotty cadillac vs lincoln which is better, ok today the lincolns are much
better than the cadillacs, in my grandfathers day, up until the late 60's I would have said
the opposite I would have said the cadillacs were better than the lincolns but GM quality
has been going down for a long time and ford quality has actually been going up in the
last decade and a half so, I would definitely get a lincoln before I'd but a cadillac these
days, gm quality is just bad, look their shutting down all those factories in the US,
peterson says scotty what do you do when your windshield washer fluid freezes below 32 F
and how do you replace a windshield washer fluid hose to the sprayers thanks,
well the first thing to replace the hose it's no big deal, just find the length of the whole
thing, where it starts and where it ends, and you can go to any discount auto parts
store I use an autozone that's 2 blocks from here, and you can buy bulk hose just cut a
piece off your old one with a razor blade and then you can match up the diameter,
now to get it off here's a big trick and the big trick is,
their rubber hoses and they usually have plastic connectors well as soon as they get old that
plastic will crack so if you grab them and twist a lot of times they break off so instead,
get a nice sharp razor blade and be real careful and slit the hoses all around the plastic
connectors, don't hit the plastic just slit the rubber part and then it peels off just
like a banana, I do that all the time because I used to break them all the time myself and
I'd be mad as heck, now I just get a little razor blade and cut them, you can do the same
thing with any radiator hose that's stuck just get a razor blade and make a bunch of
marks and then you can just peel it off and easily remove it, so if you never want to
miss another one of my new car repair videos, remember to ring that bell!