Question about 1996 Mercury Grand Marquis

1 Answer

Fuel pump only getting 6 volts,2001 grand marquis?

When 12 volts are introduced car runs. could it be a bad diode?

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 9 Answers

The cances are that the fuel pump relay is faulty,
and not passing the right current

Posted on Dec 16, 2008

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

4 Answers

How to tell if the alternator is bad in a 1987 jaguar xj6


use a voltmeter on the battery terminals. it should read about 14 volts if its charging.

Dec 20, 2017 | Jaguar Cars & Trucks

2 Answers

Battery light flashing jump it ,it will start but not run


It could be you have a fault in the Diode pack in the alternator you need to get this checked at an alternator repair center.

Dec 03, 2014 | 2000 Ford Mustang

2 Answers

87 toyota camry new battery wont keep charge, alternator checks okay, in dash bulb for charge and brake and lights stays illuminated?


Generally if charge light is on, alternator has a bad diode in it. This lets the charged battery lose its power by flowing in the reverse direction. It sounds as the alt., is either not connected right or is swtill bad

Jan 18, 2010 | 1995 Toyota Camry

2 Answers

The fan in the engine is not running, is that how that model runs?


The fan should come on as the engine warms up about 10 minutes after starting if it does not come on there is a problem. There are two possibilities the fan relay is bad (locate and replace) or the fan temp.sensor on the top of the engine is bad, do a continuity test on the fan temp.sensor after the car warms up it should read zero if not repalce the switch. It is doubtful the electric fan itself is bad but it maybe just introduce 12 volts to the fan grounding it with a jumper wire to check.

Dec 31, 2009 | 1991 Toyota Camry

1 Answer

Car will not start i can remove battery cable for


It sounds like you have something on all the time, that is draining the battery. Check for things like trunk light, etc.
You can tell if there is something on, because with the engine and everything off, there should be no current flow between the batter post and the cable you took off. So you can put a volt meter between them, and get 0. If you instead get 12 volts, then something is on. You can pull fuses one at a time to try to narrow it down. But it could also be the alternator, if a diode goes bad, and that has no fuse. You can just unplug the alternator and see if the drain goes away. While diodes are only a buck, rebuilding the alternator will run more like $50.

Sep 12, 2009 | 1997 Infiniti.5 J30

2 Answers

2002 monte carlo will not charge has a new battery and a new alternator has 12 volts going to the big post and 12 volt going to 1 of the 2 small wires


You need more than 12 volts to charge the battery. How many amps does the alternator put out? This is what charges the battery.

Aug 18, 2009 | Chevrolet Monte Carlo Cars & Trucks

1 Answer

Electrical/Battery Light


Hi,I am Ron,Look at the alternator out put voltage,and have the battery load tested.Also check bad connection from battery to alternator(this is the large wire/cable).alternator turns the battery light on,why?You need to figure out witch one.A diode could be going out in the alternator,diodes change ac voltage to dc voltage ,that`s why the call it a alternator(alternating current)AC voltage means alternating current. If it goes unrepaired it can ruin battery,changing battery voltage from 12 volts dc to 12 volts ac.Also there is a built in voltage regulator that holds voltage down to about 14 volts charging while car is running.Voltage regulators can cut off charging completley or open wide allowing alternator to charge as much as 18 volts dc,ruining battery(boiling battery acid out of battery)and ruining alternator by burning fields and rectifiers out.So have it checked or do it your self.Auto parts stores can check alternator and battery.If I can be of more help,please ask.roniecon@gmail.com

Jul 19, 2009 | Ford Five Hundred Cars & Trucks

1 Answer

1966 chevelle with 283 cu. in.


the r terminal only has 12 volts on it when you are cranking the starter over. so the wire that goes to the r terminal goes to the plus side of the coil then the wire that come from the switch also goes to the coil this wire should have only about 8.5 volts on it when switch is in run position the r terminal puts 12 volt on the coil while cranking the motor over the when the switch is in the run position there is 8.5volt on the points so you don't burn the points out the diode kit i don't no why you need it unless the don't what any back feed volt to the r terminal in the run position so i would put it in line(series) with the r terminal wire the flow on the diode is from the -<- this side of the diode goes to the coil

Jul 03, 2008 | Chevrolet Malibu Cars & Trucks

Not finding what you are looking for?
1996 Mercury Grand Marquis Logo

Related Topics:

178 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts

yadayada
yadayada

Level 3 Expert

77499 Answers

fordexpert

Level 3 Expert

5613 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...