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My Magnum cranks and sounds solid but won't start. When I put the volt meter on the plug wire it reads 11.5 volts, any ideas where to go next

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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lancer721
  • 229 Answers

SOURCE: Charging system Question

This is within "normal ranges" however it is an indication of wear on your alternator. If you start seeing a slow but steady decrease in your voltage it is probably time to check out the charging status of the alternator on your vehicle.

Posted on Nov 22, 2008

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SOURCE: I have a 2004 chevy

Chevrolet placed a recall on the instrument cluster about a year ago. take it in and they will replace cluster for free.

Posted on Jan 25, 2009

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SOURCE: MX5 not charging battery. If i disconnect the

usually cars stall when running and the batterie is removed, indicating a bad alternator.
perhaps your batterie is bad

Posted on Sep 19, 2009

jsmes1027
  • 749 Answers

SOURCE: when the Jeep was new the volt meter read 14

Generally the standard voltage should be 13.5 to 15.5 depending on the load that is being put on the vehicle and age of the battery an older battery may require more voltage to charge. Unless the voltage drops below 13 you are probably ok.

Posted on May 28, 2010

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SOURCE: i have a sebring 2004 v6 2.7 which is misfiring. put it a new coil and changed plug on cylinder that doesnt fire still no spark. im getting power all th way to the plug tested with volt meter.it reads

Invalid test. When plug fires, the wire shoots around 40,000volts. When not firing, there is no current in the wire.
Try switching the misfiring plug wire with another that is firing. Switch them both at the plug and at the coil tower. If that was a bad plug wire, the misfire will now be on the cylinder where you put the suspect wire. This will confirm a bad plugwire.
Good luck.

Posted on Nov 25, 2011

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2002 Town and Country. Why does it have a rough idle, dies when stopping, has sluggish power, and sounds terrible?


Suspect throttle positioning sensor (TPS)...can be tested...need a meter set to read 5 volts DC...Tps is located on throttle body...it has a three wire connector with wire colors: Brown/Orange...Dark Blue/Dark Green...And Pink/Yellow...Engine off...Push points of safety pins deep into into rear of in place connector PLUS METER LEAD on Brown/Orange wire and NEGATIVE METER LEAD into DarkBlue/DarkGreen...Set meter to read 5 volts...Start engine...At idle (Yes, I know it is running rough) then read meter...RECORD READING...Next rev engine to full throttle...RECORD READING...First reading must be .08 volts...Second must be 4.5 volts...If second reading is less than 3 volts...example 2.4volts TPS is culprit...Replace TPS...all readings OK? Let me know...saailer

Jun 23, 2015 | Chrysler Cars & Trucks

Tip

My Car Will Not Start.


Many starter problems are caused by week or discharged batteries, loose and corroded cables. Check the battery and the connections at the battery first when having starter problems.
NOTE: please take all safety measures to prevent any harm to you while doing any of these checks or performing any of the test.
PLEASE NOTE: CHECK TO SEE IF YOU HAVE TO HAVE ANY CODES BEFORE YOU DISCONNECT YOUR BATTERY.some cars have anti-theft built into the radios and require a code to re-power the radio after the battery connection is lost.
Check for proper starting voltage:
1.) If you have a volt meter connect a voltmeter to the starter in this manner;Black lead to the starter case; red lead to the [s] terminal, (smaller wire on solenoid), have a helper try to crank the engine over, note voltage reading.
No crank - or voltage less than 12 volts.1.) If the engine does not crank and the voltage is less than 12.0 volts.Check for a problem with the
  • Neutral safety switch
  • Clutch safety switch, (if it has one)
  • Bad ignition switch or bad ground cable from the battery to the chassis/engine.
NOTE: The ground cable needs to be a solid connection to both the engine and the frame or body. Most cars will have a ground connection to the engine and from the engine to the frame or body they will have smaller braided wires.
No crank - and the voltage is more than 12 volts. If the engine does not crank and the voltage is more than 12.0 volts. Using your volt meter, put the red lead on the larger post of the starter (the one with the battery cable) The other black lead on the starter body for a ground connection. Have a helper try and crank the engine, check your voltage meter reading.
If the voltage is less than 12 volts. NEXT: Check the battery voltage at the battery during the Crank cycle.If the battery voltage drops below 9.0. volts Check the battery cable connections be sure they are clean and tight. You may have a bad battery, charge the battery for 30 minutes then recheck.
You can still check your starter problem with out a voltmeter, you can use and old school test light in the same manner as for the voltmeter, you just have to notice if the bulb gets dimmer or not light up.

on Feb 27, 2010 | Chevrolet Impala Cars & Trucks

1 Answer

What is the easiest way to diagnose a nissan 3.3 eng. Injector, on a road trip just a few tools available.


You need a volt/ohm meter to check the injectors. The injector should ohm out between 11 and 15 ohms(leads on both ends of the injector). Set the meter to the lowest ohm reading. On the plug end you should have a jumping reading, when cranking the engine, set it to dc volts.. It never gets to 0 volts or 12 volts, Just jumps between them. If you have no voltage from the plug end, then the wire is broke. Usually by the plug. Set it back to ohms and check the plug and pierce the wire about 3 inches back. See if you get a reading. Should be close to 0 or .05 ohms. If not, fix the wire. You may have to go further down on the wire. You can get a cheap ($20) meter at any parts store.

Oct 04, 2014 | Cars & Trucks

1 Answer

Why is my truck 2003 dodge dakota 4.7 v8 magnum running rough i dont know what else to do


Lets not change any more parts in the hope problem will be solved...Lets trouble shoot...Most probable cause is the Throttle Positioning Sensor (TPS)...It is located on the throttle body...Has three wire connector: Wire colors are Orange, Orange/Dark Blue, and Black/Light Blue...If you have a wee bit of experience with a volt meter here is test procedure...Leave TPS connector in place...Take two safety pins ...Push one into rear of connector into Orange/Dark Blue and other into Black/Light Blue...Set meter to read 5 volts...Clip + meter lead to Orange/ Dark Blue pin and - meter lead to Black/Light Blue...Start engine...Meter must read .08 volts at idle...Attempt to increase throttle as high as it will go...Meter must read at least 4 volts...If not TPS is the fault...Send results...saailer
* See picture of TPS


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Aug 10, 2014 | Cars & Trucks

1 Answer

Why won't my 92 jeep start? Ihave a new battery and starter


maybe earth strap to chassis from engine. put a multi meter from battery neg to engine, set it to DC volts and crank the engine. should read 0 volts if ok. will read about 12 volts if earth is knackered.

Jul 12, 2012 | 1992 Jeep Wrangler

1 Answer

1998 Ford Explorer, 4.0 SOHC No Spark. Engine will crank but it won't start. Replaced the Crankshaft Sensor, Coil Pack, & Spark Plugs. Still no spark. What next?


You are at thhe right trail what controls spark is coil pack crank sensor sparkplugs and plug wire but the most important is power . I mean 12 volt connections and ground This includes checking fuses you need a simple volt meter doesnt have to expensive or fancy just to pick up 12 volts let start with fuses in the engine juction box (there not mark to what it belongs to) make sure none are open. especially fuse 19 and 24 , next go to the crank sensor make sure the tabs are snuggly on now to the coil pack there is a red and light green wire this comes from ignition and feeds 12 volts at the coil pack measure that voltage is it 12 volts if not correct it this is from ignition switch ( you can make a tool that feed 12 volt with a wire and a fuse in series and attatch it to battery and the primary wire this is known as hot wire) next go to the ECM wiggle the wires see if that get a connection going if not go back to the ICM here are the wire you are to measure the tan light green, this is from ECM and it is pulsed it measure 5vlts to 0 volts switched then measure the tan orange the same thing 5 volts to zero,then tan white again 5vlts to zero. any one of these 5 to zero fails you fix is the ecm

Aug 21, 2011 | 1998 Ford Explorer

1 Answer

Car won't start. Battery power seems fine. Turn the key, no cranking, lights and radio die with key in "start" position.


Hello davidoz,

Your description sounds like a bad battery. Do you have a volt meter to watch the voltage as you turn the key to start? The voltage on a good battery( meaning fully charged) should stay about 11 volts while cranking, if it drops below that suspect a bad battery.

Another possibility is that the battery is good but the alternator is not charging.

Will it start with a jump? If is does check with a volt meter the out put of the alternator it should be 13.8 volts or slightly higher.

Regards,
netvan

Mar 09, 2011 | 2000 Pontiac Grand Am GT

1 Answer

95 astro has no spark to the coil what next


Try this tips:
1. Check the battery voltage at the battery with the digital volt/ohm meter. Set the meter to "Volts D/C" and touch the black meter lead to the negative battery post and the red meter lead to the positive post. A fully charged battery will measure 12.7 volts or more. A measurement of 12.5 volts is considered discharged, and the battery should be charged before any further testing. Any measurement below 11 volts indicates a severely discharged battery--the battery is most likely damaged and should be replaced. If the battery measures above 12.7 volts, proceed to the next step.

2. Check the starter for battery voltage by touching the red (positive) meter lead to the battery cable terminal on the back of the starter and the black (negative) lead to the chassis. The voltage reading should be approximately the same as the measurement at the battery. If the reading is lower than battery voltage, check for bad connections at the cables on the battery and the starter or ground cable.

Check for ignition switch signal at the purple wire on the back of the starter. When the key is turned to the "Start" position this wire should measure battery voltage. If the reading is less than battery voltage, or zero volts, check the fusible links (orange wires) on the back of the starter. If the fusible links are intact and not burned or broken, replace the ignition switch. If battery voltage is present at the purple wire, and the starter doesn't turn, replace the starter. If the voltage measurements at the starter are correct, and the starter cranks the engine over when the key is turned to the start position, proceed to the next step.

3. Remove the air duct attached to the throttle body, and spray a liberal amount of the carburetor spray into the throttle body. Replace the hose, and try to start the engine. If the engine starts, the fuel pump is not supplying fuel or the ignition module is not pulsing the injectors. Check the fuel pump fuse located in the under-hood fuse block. If it is good, check for power at the fuel pump electrical connector located near the rear of the fuel tank on the driver's side of the van. In the Chevy Astro van, power is supplied to the fuel pump by the the gray wire on the electrical connector when the engine is being cranked. If power is supplied, hitting the fuel tank with the flat side of a hammer while someone else is turning the ignition key to start will sometimes bump the fuel pump enough to allow it to start. If the fuel pump checks good, proceed to the next step.

4. Check for spark. Disconnect the coil wire at the ignition coil, and try to start the engine. If no spark occurs, replace the coil and ignition module. If a strong spark occurs, plug the wire back in, and remove a spark plug wire from a spark plug and repeat the test. If a spark is not present, replace the spark plug wires, and distributor cap and rotor.


Keep us updated.

Jan 12, 2011 | 1995 Chevrolet Astro

2 Answers

The battery light stays on, what does that mean?


have the very same problem. It means a couple possiblilites. It could be that the alternator, alternator diode or wiring is going out. If may also mean the battery is getting bad.

Check your battery terminal connections for good solid clean contact, and solid connections on your alternator and see if you can tell how old the battery is.
Most likely an alternator replacement will solve this issue... That's what I'm doing on mine today.

Apr 07, 2010 | 2000 Ford Expedition

1 Answer

Location of map sensor on my 1996 chevy k1500 truch vortex v8 5.0


The M.A.P. sensor is located on the upper intake manifold plenum. It has a plug with 3 wires connected to it, and a vacuum hose connected to it. to chek the sensor you'll need a volt meter. you can insert the positive lead into the backside of the terminal of the light green wire (with the plug still plugged into the sensor). Put the negative lead from the volt meter and ground it to a solid chassis ground. Turn the key to the on position (DO NOT START THE ENGINE). Your voltage should read 4.0 to 5.0 volts. Now start the engine. at idle your voltage should read 0.5 to 2.0 volts. If your volts read in those ranges your map sensor is good.

Mar 06, 2010 | 1996 Chevrolet C1500

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