Cars & Trucks Logo

Related Topics:

G
Gina-Marie Jean-Charles Posted on Jan 22, 2014
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

Crank position sensor

I owned a Mercedes A class 190. My car starts but there no power or fuel flow to my engine. I've changed the ignition coil and still nothing. Could it be the crank sensor?

1 Answer

ivan whisker

Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Genius:

An expert who has answered 1,000 questions.

  • Mercedes-Benz Master 1,164 Answers
  • Posted on Feb 13, 2014
ivan whisker
Mercedes-Benz Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Genius:

An expert who has answered 1,000 questions.

Joined: Jul 24, 2012
Answers
1164
Questions
9
Helped
302752
Points
2628

If there is no fuel look at the fuel pump and relays

5 Related Answers

Christopher Keene

  • 201 Answers
  • Posted on May 09, 2009

SOURCE: 1992 dodge 318 engine turns over, but no start. No

if truck has a ceramic ballist resistor near and connected to coil this could be problem or the crk posistion sensor could be too, i would change ballast first if you have on your truck appx cost $10

Ad

Anonymous

  • 672 Answers
  • Posted on Aug 11, 2009

SOURCE: No spark, 1988 Toyota Camry 3SFE 4cyl, 5 speed.

there is no crank sensor on this vehicles 2.0L. If you have power to the coil, new coil, cap and rotor try this if not done yet>>>Unplug coil power first....Try pulling off the distributor cap, and make sure the rotor is spinning with the cam...If this fails to spin, inspect the entire distributor assembly. If it passes, Inspect all the power circuit and wiring to the dist assembly, if ok possible ecu. i recommend having a mechanic check it out!! Hopefully this helps...please rate...thanks

Anonymous

  • 1382 Answers
  • Posted on Aug 27, 2009

SOURCE: "Cranks, but won't start". Replaced fuel pump, CKP, ICM & nothing

If the engine cranks over normally when you attempt to start you car, but the engine does not start, the problem may be NO FUEL, NO SPARK or NO COMPRESSION. The engine needs adequate fuel pressure, a properly timed spark and normal compression to start.


1) To find why the engine won't start, remove the air inlet tube from the throttle body, push the throttle open and spray a small amount of aerosol starting fluid into the engine. Crank the engine. If it has spark and compression but NO FUEL, it will start and run a few seconds before dying. If it does NOT start, it probably has NO SPARK.

2)Another method to check for spark is to pull a spark plug wire off of a spark plug (if it has plug wires, coil-on-plug ignitions do not) and place the open end of the plug wire near a metal surface on the engine. Have a helper crank the engine while you watch for a spark. DO NOT hold the wire while doing this as it can shock you. If you see a spark, the problem is not spark, but most likely NO FUEL or NO COMPRESSION. If you do not see a spark, the problem is in the IGNITION CIRCUIT.

3)Proper fuel pressure is critical for fuel injected engines to start and run. You should hear the fuel pump inside the fuel tank buzz for a couple of seconds when the ignition is turned on (no buzz means the pump is not running and the engine is not getting fuel). You can smell the tailpipe for gasoline vapors after cranking the engine. If you smell gas, the problem is likely not fuel but NO SPARK. You can also remove the plastic cap and press the schraeder valve test fitting on the fuel rail to see if there is any fuel pressure to the engine (not a very accurate test because fuel pressure must be at a certain level for the engine to start, for that you need a gauge). Even so, no fuel at the fuel rail would tell you fuel is not getting to the engine..

Anonymous

  • 105 Answers
  • Posted on Oct 26, 2009

SOURCE: my 2001 honda civic will turn over but not start

most common problem with these civics are the rotor and ignitor. i would reccommend starting with a new dist cap, rotor, and ignitor.

Anonymous

  • 834 Answers
  • Posted on Jul 31, 2010

SOURCE: 1999 silverado 4.3 cranks but

First check to see if full battery voltage is even getting to the "Pos" (+) positive side of the ignition coil when the key is in the "Run" position, and also that full battery voltage is getting through the "Pos" (+) or positive side of the ignition coil and over to the distributor ignition module

The ignition module and the pick-up coil/stator located inside of the distributor is what generates the signal that the ECM (Engine Control Module) uses to time and fire the fuel injectors, as well as the signal to run the fuel pump and the dwell signal timing to fire the ignition coil, and a faulty ignition module can cause any one of these systems to malfunction.

That does sound like a malfunction with the ignition module inside of the distributor, and you can remove the ignition module and have it tested for free at most auto part stores. If the ignition module does test out alright then the problem could still be in the pick-up coil/stator, (it can be tested using an ohm meter by dis-connecting the wire connector from the pick-up coil/stator and the ohm reading between the two wires from the pick-up coil/stator should be between 500 and 1500 ohm's, and both of the wires from the pick-up coil/stator should show an open loop or an infinite reading between each wire and ground) and if the pick-up coil/stator is found to be faulty then replace the entire distributor, or the distributor will have to be dis-assembled to install a new pick-up coil/stator.

If you do purchase a new ignition module be sure that it does come with a silicone grease or a die-electric compound because it is a heat sink and the ignition module will burn up without it.

To install the new ignition module first clean out the mounting surface inside of the distributor. Then completely coat the metal contact surface under the ignition module with a thick coat the silicone grease or die-electric compound and do not leave any of the metal contact surface of the ignition module un-coated with the silicone grease or die-electric compound, and be very careful not to over-tighten the ignition module or it will be damaged.

To replace the distributor follow this procedure;

The ignition timing is not adjusted with a timing light or with the engine running, and to set the ignition timing follow these procedures.

There is a mark or notch on the distributor housing that the rotor should be pointing to when the engine is on top dead center. This "static" timing is all that matters and the computer will be able to control the timing as long as the ignition rotor is in that position when the engine is at top dead center.

Removal;

1. With the engine at top dead center.

2. Look under the distributor cap and find where the number one terminal runs under the distributor cap, and where that position on the distributor cap corresponds with the distributor housing, and it should match up to a mark or a notch on the distributor housing indicating the number one position.

3. With the engine on top dead center the ignition rotor should be pointing to the number one mark or notch that is on the distributor housing, Then make a reference mark of the position that the ignition rotor is pointing to (out on the engine or firewall) and the more precise you mark the position, the easier the installation of the new distributor will be. This will be reference mark #1.

4. Remove the distributor lock down bolt, (the lock down clamp will most likely be attached to the distributor and if so it should not be removed from the distributor) then slowly lift up on the distributor about three inches and note the direction that the ignition rotor turns, and when the ignition rotor stops turning then mark the position that the ignition rotor is pointing to (out on the engine or firewall) and then lift the distributor striaght up and out, and remove the gasket or any left over gasket material from the intake manifold. The more precise you mark the position the easier it will be to install the new distributor and an assistant might be helpful. This will be reference mark #2

Once the distributor has been removed it is important that the engine does not get cranked over by the starter or the crankshaft turned at all, or the reference marks will become useless.

Installation;

Be sure that the new distributor is complete with a new module and that there is a new gasket in place on the distributor.

1. Lower the distributor with gasket down into the distrbutor well and align the ignition rotor with the #2 reference mark and when the distributor gear engages the drive gear on the camshaft then the ignition rotor should turn to the #1 reference mark as the distributor sets all the way back down flush on the intake manifold.

2. Install and tighten the lock down bolt, and If the distributor is properly installed then the ignition rotor should be pointing to the #1 reference mark and the #1 position on the distributor housing with the engine on top dead center.

Replace the distributor cap and connect the spark plug wires, and see if the engine will start, if the engine does start and the check engine light does not come on (assuming that it was not on before) then the distributor is properly installed and there is no further timing requirements.

Let me know if you require any further assistance.



a4e111e.jpg

71a37c7.jpg

91bcf9e.jpg

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

My 1999 Nissan Bluebird does crank when I start it but cannot start fully.

If your 1999 Nissan Bluebird is cranking but not starting, here are a few things you can check: Fuel supply: Check if there is fuel in the tank and if the fuel pump is functioning properly. You can listen for a humming sound from the fuel pump when you turn the key to the "On" position. If you don't hear anything, the fuel pump may be faulty. Spark: Check if there is a spark at the spark plugs. You can remove a spark plug, connect it to the spark plug wire, and ground the spark plug to the engine block while someone cranks the engine. If there is no spark, you may have a problem with the ignition system, such as a bad ignition coil or ignition module. Battery: Check if the battery has enough power to start the engine. You can try jump-starting the car or using a battery charger to charge the battery. Starter motor: Check if the starter motor is working properly. You can try tapping on the starter motor with a wrench or hammer while someone cranks the engine. If the engine starts, the starter motor may be faulty. Sensors: Check if any of the engine sensors, such as the crankshaft position sensor or the camshaft position sensor, are faulty. These sensors provide important information to the engine control module (ECM) to help it determine when to fire the spark plugs and inject fuel. If you are unable to identify the problem on your own, it may be best to take your vehicle to a qualified mechanic who can diagnose and repair the issue.
0helpful
1answer

Runs a few minutes, then dies and will not start again until the engine cools down - 1 hour or so.

There are a few things effected by heat that could be causing this. Crankshaft position sensor (if your car is equipped since Mercedes started using them sometime around 1991-1992), Fuel pump relay, fuel pump itself, ignition coil (s) and ignition control module (EZL). The only way to narrow down which one it is, is to diagnose the problem WHILE its not starting, so test for fuel and spark during those times and narrow it back from there.

If you need further help, reach me via phone at https://www.6ya.com/expert/daniel_4061c3d97c12c4c7

0helpful
1answer

S class not starting

do tune up replace spark plugs and wires.replace fuel filter.to trouble shoot engine not starting check for fuel or spark.if see no spark at spark plugs you could have faulty ignition coil or crankshaft position sensor faulty. could have faulty ECM.no fuel problem could be faulty fuel pump relay or pump failure code scan vechicle first before buying new parts.if all is good timing chain slipped time or broken.
0helpful
1answer

My car cranks but theres no spark on the plugs. i changed the ignition coil but its the same thing. im wondering if it could be the crankshaft position sensor or igniton control module?

Yes the crankshaft positioning sensors could be be problem of the car, but i advice you to run a scan on the car for proper diagnosis.
1helpful
2answers

I have a C Class 230, 2007 with 27K miles. Owned

Let me understand that the problem is intermittent and engine is cranking but not started. For that being said, there are 2 main things to check.
1-The start is not on since there is not fuel delivered to the Fuel distribution. Fuel pump is controlled by the pump relay. But the pump relay is activated by the a fuel pump control module which is an electronics integrated module. This is the one gives unstable condition.
2- The start is not on since there is no electric signal to deliver to the primary coil. And this one is controlled by the ignition module. This is an integrated electronic module can give unstable condition.
The last thing to check is the Crank shaft sensor condition since it has to give the signal for the above 2 things to work. Good luck
0helpful
1answer

ENGINE MIS FIRING AND STUTTERING AT INTERVALS.

Did you replace the spark plug wires? If you did then it will be the ignition timing.
2helpful
1answer

STALLING PROBLEM TURNED INTO NO START 1990 MB 300 SL

hello,good day,first we are in fuel side,better to install a fuel gauge,to determine the right pressure, is not mention your fuel pump relay,this should also check,some occasion the power supply is missing,now if all is in order (fuel side) then your switching unit(transistor box) need tobe check,assuming your engine is 103 engine,ty
Not finding what you are looking for?

85 views

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

xxxxxx xxx

Level 3 Expert

5117 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

7339 Answers

Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...