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Rpm tachometer stopped working just had alternator and master cylinder replaced noticed after leaving service shop

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Take it back to garage,someone has left a wire off

Posted on Jan 13, 2009

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Will wet clutch work again if run dry and now car wont move

what is a wet clutch?,. the A/T torque converter
the inside transmission wet, clutch packs
or the stick shifting master cylinder and slave
why not post year, swift, and what system you are working.
eg: my car wont move, got that.
my RPM tachometer races fast, but car wont go (called slip)
or my clutch pedal seems dead.
or my A/T CAR., transmission is no working right, say what?

we cant guess any of that.
just say whats up, fully, please.

Feb 16, 2015 | Suzuki Swift Cars & Trucks

1 Answer

While driving 2000 Ford Explorer I noticed driver side window would not go back up, than tachometer stopped working, noticed that charging gauge was on very low, vehicle finally died am wondering if that...

Sort of. The gauge reading low means the alternator is not charging the battery, which is why it stopped running. The actual problem could be the alternator or a wiring problem on the truck.

Jul 25, 2014 | Cars & Trucks

1 Answer

2002 Tundra, replaced battery, alternator was checked and is good, but engine cuts out when I slow down/break, and battery light comes on. Starts back up easily.

stop guessing, please.$$$$$
hot or cold engine, or both.
ever heard of engine stall? the rpm drops below 800 and stalls?
the engine rpm is KEY
post all symptoms, and we can fix it.
so far all i have is the hint of a stall or engine running at 300 rpm.
the alternator don't work at 300 rpm. at stall or near that.
your car dont have a tachometer? if it has one learn to watch it.
stalls are complex.
can be.
The engine PCM controls idle speed and Regulation at all times.
and is the LAST thing to work right, in EFI.

think of a juggler of bowling pins, a delicate balancing act.
so if the pins are slippery , he drop one, so easy.
EFI is Electronic fuel Injection (makes spark too , on gas engines..)

on EFI, idle fails (low) 800 is normal hot block, (look up yours. no engine options or size or cylinder counts stated)

the low RPM is caused by. many things. (i have a list of 50) so skip that....
1: too rich , too lean,. misfiring, DTCs set, ever scan the PCM YET?
2: EGR sticking open(clean it)
3: ISC (IAC electric) stuck closed, (again clean it)
4: never did the 60k mile tune up? if you did it would run ,if not the person doing it would tell you why it dont run right or even fix. it.
during a tune up , we check the ISC and EGR for filth and clean them.

now ill do the marco (physics answer)
1: bad engine, engine compression bad on 1 or more cylinders.
2: bad spark , tuneups fix this 99% of time, and work
3: bad fueling. (vastly complex. but most times bad inputs to ECU)

there are exceptions, but all land on #1 (stops engine from pumping air)

Dec 30, 2013 | 2002 Toyota Tundra

2 Answers

My RPM meter is not's always on 0.

I used to have a 1999 Mitsubishi Eclipse with the same symptoms; my mechanic replaced the speed sensor ($65) and the problem went away. Take the car to auto zone and ask them to plug the computer, they normally do it free of charge. If it is the sensor, you may have to buy at the dealer.

Oct 05, 2012 | 2000 Hyundai Sonata

1 Answer

Brake pedal go's to the very bottom and slow stopping

A few different things to look at. Either you have a bad master cylinder, master cylinder and booster, brake Caliper/calipers.

Look under the vehicle on inside of the wheels, if you notice any fluid on your tires then it is coming from the caliper piston leaking. They have rebuilt kits, but its way easier to just install new calipers.

Look in the engine compartment on the drivers side on the firewall, you will see the master cylinder with 4 lines running from it that it will look like this jgwhomeequip_0.jpg

Look at where it attaches in the back, if fluid is leaking in the back then you need a new booster. To be honest with you, since it has to do with brakes, if you are not mechanically inclined I would leave it to a professional. You can call a mobile mechanic to do the job usually about 50% cheaper on there labor rate, but just as experienced or you can tow it to a shop.

Jun 19, 2011 | 2002 GMC Yukon XL

1 Answer

My brakes had began to fail. I tried adding brake fluid, they got worse. So I took it in for repair to a local shop, they said I needed a new master cylinder and added one. I had been driving my car for...

1- New master cylinders could also fail, possibly due to bad quality replacement parts or maybe even just a factory fault on a good quality master cylinder.

2- If you had blown a rear wheel cylinder, you most deffinatly should still have had a form of front brakes. the reason for this is as follows... For this very saftey meassure manufactures design the container for the brake fluid supplying the master cylinder in two internally, so this would mean that if you where to drain all the brake fluid through the rear wheel cylinders an acceptable amount of brake fluid should still remain within the one compartment of the reservoir for the front brakes to still opperate.

3- Leaking rear wheel cylinders should have been noticed by the technician who installed the master cylinder, the reason for this is because the brake fluid would have had to be bled through the system at each wheel. even though it would have been performed from the back of the wheel one would expect the technician to notice the brake fluid dripping out behind the brake drum.

I hope the above is of assistance to you.


Feb 21, 2011 | 2001 Ford Taurus

2 Answers

Brakes sink to the floor

by stating that your pedal sinks to the floor, you leave 3 options open 1.) the master cylinder seal is bypassing allowing the fluid to bleed by the proper correction is to rebuild the master cylinder.
2. One of your drum brakes has a wheel cylinder that has failed causing a noticable behind the tire leak (most common) correction is to replace all brake hardware and wheel cylinder.
3. One of the brake lines is cracked,broken, inspect for leaks and replace with new line.
4. notice on disc brakes if a brake caliper fails (part that squeezes brake pads to rotor) you will have the same symptoms of a broken wheel cylinder, this would of gradually occured feeling a heavy pedal or pulsation.

Feb 19, 2011 | 1994 Toyota 4Runner

1 Answer

My 2006 Chevy Monte Carlo has been making a noise for a couple weeks like the brake pads were getting a little thin. I was planning on doing a brake job this weekend. However, today as I was leaving...

It certainly sounds as though the brake fluid had been contaminated with some form of oil, probably mineral oil.

It is potentially a seriously big and expensive job to sort out as it is possible the oil has found it's way into the brake system threatening every rubber component including the hoses.

Ideally every rubber component should be replaced for the sake of long-term safety and reliability and all the pipework flushed. It would be considerably cheaper to obtain service kits for the master cylinder, calipers, etc. but there would be a great deal more work involved.

If I was faced with the problem I would replace the master cylinder or fit a service kit and then after draining the system and purging it with compressed air I would check each caliper for normal operation. If one seemed stiff or tight I would dismantle it for inspection and if there is indication of contamination the seals and the flexible hose to that wheel should be replaced.

Mar 12, 2017 | 2006 Chevrolet Monte Carlo

2 Answers

2004 kia sedona replacing alternator

hi ive got same problem, ive replaced belts but still there ive noticed play on the the top belt guide pulley noise stops when i put oil in behind it going to replace it ill probably need to take engine mount off to do this dealer price for part about £60 and gess what got to order it in thoe mine squels more when its raining

Oct 21, 2008 | 2004 Kia Sedona

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