Question about 1991 Mercedes-Benz E-Class

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1991 Mercedes 300e,cranks over-willnot start,check coil,fuel rail, getting fuel spark plug looks fair

Engine cranks over,firing going to plugs,spark plugs fair shape, willnot start

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  • Mercedes-Benz Master
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Crank position sensor?

Posted on Nov 15, 2014

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Nissan sentra 2000, start but not fairing, spark plugs have been checked, fuel pump is ok. What we be the problems?.


Start, but not... what? "fairing"? You mean firing? But if it starts, it has to be firing the spark plugs?? If not firing, then ignition system is not working-plugs, plug wires, ignition coils, ignition control module, crank position sensor, and ecu- these are all part of the ignition system.

Mar 02, 2016 | Nissan Cars & Trucks

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I have a 1991 Z 28 Camaro that will not start?


I take that it does crank over? If this is the case you need to determine where the problem is, are you getting fire to the spark plugs? or is fuel not getting to the engine. If you know you have fuel pressure to the fuel rail, and the pump is running when you are trying to crank the engine, make sure that the injectors are spraying fuel into the engine. If you have verified that you do have fuel and it is getting into the engine, make sure you have spark to the plugs. It could be the pickup in the bottom of the distributor, this is what fires the coil and meters the injectors.

Jul 17, 2014 | 1991 Chevrolet Camaro

1 Answer

Willnot start unless you pull start it


Got fuel? Sounds crazy but you'd be surprised how many times I have poured a gallon of gasoline into someones car to get it to start.

No start condition is the most frustrating problem. More information on what happens when you turn the key would help......but basicaly you need 4 things to make a car start. Fuel. Air. Spark. Timing. Fuel, Air, Spark and Timing are needed to start/run. Asked about fuel, but is the fuel getting to the cylinder? Do you have fuel pressure at the fuel rail(s)? When you turn the key to the "On" or "Run" position, do you hear a whining sound coming from the rear (fuel tank area)? That is your fuel pump priming the system. No sound? Check fuses and relays associated with the fuel system. Air. You need air to the cylinder to make it start and run. Check your air intake and filter. Really clogged and dirty filter? Pull it out and try to start. No go? Put it back (change ASAP) and look for Spark. Spark includes battery. Are there any loose connections to/from your battery? Really corroded terminals? Clean and tighten the connections. Try to start. No go? Pull the spark plug wire off an easily accessible spark plug (grasp the "boot" as close to the plug as possible and wiggle back and forth easily while pulling - these boots and wire connectors are fairly delicate). Remove the spark plug (be careful and dont break it or cross thread it when putting back in) and pop the wire back on it and set the plug on top of your engine (away from the spark plug hole). Have someone try to start the engine. You should see the spark plug fire its tiny bright blue spark. If not, you have found your problem. The problem is likely a bad coil, bad coil wire, distributor cap, rotor or a combination of these. If you have spark, then it has come down to timing. There are lots of things that affect timing in modern cars. There are a couple of sensors that jump out - Crankshaft and Camshaft position sensors. These will generally quit working while driving and you will likely notice the problem beforehand with it running really rough and getting crappy mileage, and the check engine light will come on and give you all kinds of hints. IF you turn the key and nothing happens, it might be a broken timing belt, but again, those usually fail under working conditions. It is possible (rare) the timing belt slipped/broke when you last shut off the engine, but I would point at the other 3 things first (Fuel, Air & Spark). Hope this helps. Good luck.

Feb 06, 2014 | 1999 Ford F350 Regular Cab

1 Answer

1991 no start.but have fuel and fire..


Your ignition switch is good if you are getting spark to the plugs. You need to find out why your not getting fuel through the injecters.Check your relays again . Do not crank engine over ,but turn key on and off 10 times to charge the fuel lines.But I think you need to check your wireing and get your instrument cluster working first.

Apr 11, 2010 | 1991 Eagle Talon

1 Answer

Engine will turn over but will not start running


start with the basics check for fuel fire and air check fuel peressure with a gauge should be 50 - 65psi
pull spark plug wire and place near ground if no spark in crank sensor or coil pack ensure air filter is cleaned

on fuel pressure if low check fuel filter pump may be working and cant get to fuel rail but could have damaged pump the fuel pump is controlled via crank sensor signal so no crank sensor signal no fuel

Jan 15, 2010 | 1999 Plymouth Breeze

2 Answers

Car will not start.Engine turns over but spark plugs willnot fire


I would say replace ignition coil, that might me the problem, otherwise it can be the ecu, which might have some electrical problems not allowing the car to stay running. Good luck.

Dec 29, 2009 | 1997 Eagle Vision

1 Answer

Just bought 1991 Ford Probe lx v6 won't start


If you have spark and fuel (either via the injectors or spraying fluid into the intake), and still no evidence of firing, it suggests your valvetrain may not be working. If the valves can't open, the fuel cant get into the cylinder.

Do (or have done) a compression test. You may have a broken timing belt/chain.

Dec 15, 2009 | 1991 Ford Probe

2 Answers

Audi 100s 1993 cranks doesn,t start, turns over no start. when it starts runs rough and stalls.


could very well be a faulty sensor, leaky vaccum hose, bad coil packs, needing of new fuel filter, spark plugs, wires.

Have you checked your fuel pressure to make sure it is good. You can do this with fuel pressure tester on the fuel rail.

Also check every cylinder for spark
If you don't have any spark, or very weak spark, you could have bad coil pack, module, or crank sensor.

You can remove one plug at a time, and place it back on plug wire, place it on top of engine block, have someone else turn motor over well you observe to see if there is spark.

Do you have a service or check engine light on? If so, I would have the engine codes read to pinpoint exact problem area.

Let me know if you have any questions or need further help

Aug 26, 2009 | 1993 Audi 100

2 Answers

Engine cranks but will not fire.


check to see if you are getting a spark from the plugs. Just pull the plug and connect it back to plug wire. Then with gloves ground of that plug at the threds. Have someone try to start it only allowing 3-4 repatisions, and see if you have a spark. If you dont have a spark, then it would be eaither be the sparkplugs, plug wiers, or your coil is bad.

May 19, 2009 | 1991 Dodge Dynasty

1 Answer

Engine turns over but wont fire up


Check to ensure that there is fuel to the injectors using a pressure gauge on the schrader valve on the injector rail or fuel filter (which ever has it).

Check engine compression with a proper compression tester.

Buy an inline spark checking tool and install it between each spark plug and wire to ensure that you're getting spark to each cylinder while cranking.

These three things cover the basics. Once you've tested all these things, you can further diagnose the problem.

Apr 26, 2009 | 2007 Mercedes-Benz Mercedes CL65

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