Question about 1990 Mercedes-Benz E-Class

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1990 mercedes 300ce will not start, battery is good, fuel pump is good, crank sensor is new, can you help?

There is no spark on spark plug wires, coil is good

Posted by Nestor Cardenas on

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5 Related Answers

Linh Thanh

  • 784 Answers

SOURCE: 86 mercedes 300e wont start i ran a wire from fuel

Your Fuel Pump Module is bad. It is located behind the battery on the passenger side. Remove the plastic cover next to the battery, you will see the ECM, behind it, there are 3 boxes, 1 for AC, 1 for OVP, and one for Fuel Pump Control Module. They all have labels for identification on replacement.

Posted on Aug 08, 2009

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ginko

Ginko

  • 19396 Answers

SOURCE: car audio installation 1993 300ce 2dr coupe

I think it should be as follows:
Left speaker ground Brown
Right speaker ground Gray.

The cable to the fader in the center console color may vary

Left + is Black/Green or Grey/Brown
Right + is Black/Red or Brown/Red

On this website instead (click here )
you can buy the complete wiring diagrams for $4

Posted on Jun 03, 2008

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Anonymous

  • 2 Answers

SOURCE: 1990 mercedes 190e wont start, new battery, new fuel filter help

i see, we ask for help and you want to charge us for it. But if we have solved the problem, you want us to tell you how we did it. Well my time is valuable too, i figure it took me about three hours to figure out the problem and fix it, at my hourly rate of $100 an hour, yes i am a business executive that works on his own cars, it will cost you $300 for the answer.
Thanks,
Ifixumtoo

Posted on Jan 03, 2009

lastech

manuel domingo

  • 408 Answers

SOURCE: won't start

hello, first check all vacuum line,intake manifold in order ,fuel pump is working,hoping the fuel pressure is good,firing or ignition is working also,try to check your spare plug,determine the condition,have fuel or traces of ignition spark, check your excess voltage protection (relay) which supply power in engine side,located at fuse box,also you may check your fuel distributor (free up) or your injector nozzle for proper spray pattern,workshop have special tool for fuel pressure,ty

Posted on May 01, 2009

Jason Johnson

  • 1619 Answers

SOURCE: My 1983 Mercedes 380SL ran rough and then quit.

Replace coils, wires, caps and rotors then talk to me and well see.

Posted on Jun 15, 2009

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1 Answer

No spark from coil to distrubuter


Disconnect the ignition coil output wire at the distributor cap.
Connect a spark plug to the end of the ignition coil output wire which you just disconnected.
Connect a ground wire to the threaded portion of the spark plug.
Disconnect the ignition coil ground wire from the negative terminal on the coil (Green Wire).
Connect one end of a ground wire to the ignition coil negative terminal.
Turn the ignition switch to the ON position.
Tap the other end of the ignition coil ground wire jumper on an good grounding point (for example the battery negative terminal) and look for sparks at the spark plug that correspond to the frequency of your tapping of the ground wire.
If you have a good spark at the spark plug, the ignition coil is good.
If you don't get a good spark, check for approximately 12 VDC from the coil positive terminal (black wire) to ground with the ignition switch in the ON position. You should also get approximately 12 VDC from the coil negative terminal (Green wire) to ground
Ignition Coil Resistance Check

In addition to the test above, you may elect to perform an ignition coil resistance check as confirmation of the coil's condition.

Check the ignition coil primary coil resistance by connecting an ohmmeter between the positive (Black wire) and negative (Green wire) terminals on the coil. The resistance should be 0.4 to 0.6 ohms.
Check the ignition coil secondary coil resistance by connecting an ohmmeter between the coil output terminal and the ignition coil negative terminal. The resistance should be 5000 to 7200 ohms.

You may have a bad coil or bad ground or wire connection

Jan 23, 2017 | Cars & Trucks

2 Answers

Jeep 3.7 cylenders 2 & 4 not firing


3.7 V6, mileage?

most likely the HV wires bad.

then bad coil pack.

did you check spark directly at the coil pack?

i use 2 known good HV wires to do that and 2 good test spark plugs.

both plugs grounded to engine (shell)

that is how you test any wasted spark coil pack. 3 coil pack.

if that fails the FSM shows, unplugging it and check the coil resistances. if wrong the pack is bad,

keep in mind the res. can read ok and coil be bad ,due to internal insulation break down (internal shorts)

if thats ok. the resistance , make sure the wires are not (primary)

to the coil (the low voltage connnector)

if that is ok, its mostly likely a bad coil, (pray not bad PCM)

if tool-less? start with cheap parts , work to expensive. (guessing)





now wasted spark 101.

if one line opens , both spark plugs die. no spark

the wasted spark is wired in SERIES. ( like Christmas lights)

the magic cuts cost of 6 coil\'s.

so if the HV wires are say, cheap , carbon wire and open

you lose, both spark plugs. use MAG wire and end this issues.

get some nice NGK mag wire or Bosch Mag wires.

you can see i hate carbon wire. for good causes.

(carbon string wire)

mag wires is real wire that is coil spun and is inductive. it

has the correct impedance but is not a resistor its and inductor.

and lasts the longest , and worth every penny.

Mar 29, 2014 | 2006 Jeep Liberty

1 Answer

How to check faulty 6 volt coil


pull the coil wire from the dist cap attach a spark plug to the coil wire make sure the plug is grounded. attach a jumper wire from the - side of the coil turn key on. touch the jumper to any good ground. then remove the jumper from ground every time you do this the coil should emit a spark from the plug if no spark the coil is bad if the plug sparks the coil is good

Mar 26, 2012 | Cars & Trucks

1 Answer

There is no spark in one spark plug of 4 cylinder engine. what could be possible cause?


bad spark plug, bad or corroded connection in the spark plug boot, bad spark plug wire, loose or corroded connection on coil post, or bad coil. but if possible... take a plug wire off a known good one ( if length will allow) and swap positions around, if it has spark, then you know your coil and spark plug are good and its time to get a new plug wire;( you should replace all of them though), Now if it doesn't, then the coil is probably bad. can i get a very helpful..thanks!

Apr 25, 2010 | Hyundai Motor 1998 Accent

2 Answers

I have no spark at plugs coil has good spark


If you have spark at the coil then you have a good coil. You can't measure Ohm at a spark plug since it is alway open at the gap. But you can OHM measure a spark plug wire at both end. If you have nothing mean your wire is bad. You can swap one more wire to confirm a bad wire. If your wire is not bad then I recommend to replace both rotor and distributor cap. Good luck in locating the problem.

Dec 28, 2009 | 1983 Honda Accord

1 Answer

Change coil, sparkplugs, spark plug wires, icm and still no spark. take off spark plug wire put a good spark plug on it and ground it no spark with everything new.


Coil is bad
inspect for cracks
u could check for spark at the coil wire going into the distributer(center wire )

Sep 24, 2009 | 1992 Honda Accord

2 Answers

2000 toyota tundra


Just remove an ignition coil that you know is good, with a good spark plug and hook up to the wire were the bad one was. Have someone start your truck up for you and if the spark plug fires then the ignition coil that you took off was bad. But before you do that just try a new spark plug that may be the problem.

Aug 31, 2009 | 2000 Toyota Tundra

1 Answer

Do not know where spark plugs are located in motor


the spark plugs wires are directly located on top of the engine and the spark plugs are down inside the holes in the valve cover itself. I believe there are also 2 coils on top of the engine, which hide two of the spark plug wires which are attached directly to the underside of each coil, remove the coil pull it upward carefully and you will find the spark plugs for those two in the hole underneath the coil for each one. If you decide to replace the plugs, make sure to check the spark plug gap even if they tell you they are pre-gapped as pre-gapped spark plugs are usually gapped for more than one particular car and it may be incorrectly gapped for your specific vehicle. If you decide to also replace the spark plug wires, you will have to purchase the spark plug wires for the underside of each coil seperately because most local auto parts stores only sell 2 spark plug wires in the set that go onto the non-coil attached wires and plugs, and you have to purchase the coil spark plug wires seperately. So all in all you should have 4 spark plug wires, 2 that attach directly underneath the 2 coils, then 2 regular type wires that run to the other spark plugs. If you look at the valve cover and see the wires, you will see what i am saying better. Just don't forget to ask the autoparts store the spark plug gap recommended for you car, and adjust the gap on the plugs as needed. good luck.
Bren H.

Sep 19, 2008 | 2000 Mitsubishi Mirage

2 Answers

Keeps mis-firing on cylinder #3 check engine light flashes and stays on car chugs on uphill slopes


check plugs wires for damage or just replace if you have replaced the #3 plug already if not replace it also

Aug 04, 2008 | 1999 Ford Taurus

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