Question about 1994 Volvo 850

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Will the crankshaft sensor cause the engine to have intermitting starting problems

Some times the car wont start and when it does start you might be able to run it foe about a week and than you go to start it and it wont go leave it for a few days and it will start cranks over good but wont fire up changed fuel pressure sensor am position sensor had fuel pressure checked can the crank sensor cause this

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  • Volvo Master
  • 14,384 Answers

Yep,here's how to replace.Here's what your replacing.The Crankshaft Position Sensor is located:Under hood, center, front engine area, lower front side of engine, passenger side of crankshaft pulley, mounted in engine block

Posted on Jan 04, 2013

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  • Contributor
  • 4 Answers

Not sure on a volvo but it did on my pontiac bonniville

Posted on Jan 04, 2013

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: my 95 850 t5 wont always start

have you tried testing the coil on the ignition side of things? sometimes coils can have coil windings break and reconnect. have a technician check the primary and secondary coil winding resistance to make sure it is good.

Posted on Jun 17, 2009

herbalgarden
  • 344 Answers

SOURCE: 93 volvo 850 glt changed the fuel pump now car

Check your fuel pressure to ensure proper pressure to the block, also did you replace the fuel filter.

On a side note: 3 things a automobile needs to run

AIR-make sure you have a clean air filter and your MAF (mass air flow sensor is plugged in) if you pulled your breather to innspect anything, there is a possibility that it came unplugged or you unpluged it and forgot to hook it back up, a car wont start without it being plugged in if equiped

SPARK-Make sure your car has juice to the plugs, if the plug doesnt fire the car wont run, if you have to pull each plug and ground them to the engine block to see if they arch. If not trace the problem down (if you changed the fuel pump you have some mechanical skill and should be able to troubleshoot a spark issue)

FUEL-Check for proper pressure, dirty fuel filter(s) and if your system has a return line, make sure your hoses didnt get crossed cause this will damage the engine and regulator.

Hope this helps Thanks for using Fixya.com

Posted on Jan 22, 2010

  • 4 Answers

SOURCE: 1987 volvo 740 turbo,cranks has fuel and spark but runs backwards when key is in run position ign computer?

you may want to check the noise suppression relay under the bonnet. A black relay with 4 wires either in front of the coolant tank or by driver side strut.

Posted on Apr 27, 2010

jerroldwsmit
  • 6 Answers

SOURCE: 2001 volvo s80 no fuel pressure. cranks but

Most likely there is an issue in the fuel delivery system. Probably a fuel pump, however i would check out things like fuel filters, pressure regulators, or pinched or damaged fuel lines before going to the expense and awkward and timly task of replacing the fuel pump which more than likely involves removing the fuel tank. About a 10 hour job if your a DIY, a mechanic in a professional atmosphere can do the job in about 3 hours. Hope this helped!

Posted on May 12, 2010

jturcotte
  • 8569 Answers

SOURCE: The car cranks over but will not start. It was a

Hi, if the car suddenly sounds different when cranking, suspect the timing belt has slipped or broken. Possibly your crankshaft sensor was loose or packing up which led to a backfire, which reversed the crank direction and caused the belt to jump. I have pasted directions below from autozone.com on how to remove your timing belt cover if you want to check the belt yourself. The last picture below shows the timing marks on the gears. If the belt is still intact, use a socket on your crankshaft pulley bolt to rotate the engine until the camshaft gears align with their marks. Then check the crankshaft gear at the bottom to see if it is aligned to it's mark. If not, your timing has slipped and you need a new belt. If the belt is bad, I can also supply directions for replacing it. Please let me know if you have questions and thanks for using FixYa.


2.3L and 2.4L 5-Cylinder Engines

See Figures 2, 3, 4, 5, 6, 7, 8 and 9

  1. Disconnect the negative battery cable.
  2. Remove the coolant expansion tank and place it on top of the engine.
  3. Remove the spark plug cover.
  4. Remove the drive belts.
  5. Remove the fuel line clips.
  6. Remove the right front wheel and loosen the inner fenderwell.
  7. Remove the vibration damper guard and turn crankshaft pulley until the marks are lined up.
  8. Remove the water pump pulley.
  9. Remove the retaining bolts and lift off the timing belt cover.

jturcotte_705.gif

Fig. Fig. 2: Unplug the connector, disconnect the hose and remove the expansion tank



jturcotte_706.gif

Fig. Fig. 3: Remove the belt and the tensioner



jturcotte_707.gif

Fig. Fig. 4: Remove the spark plug cover to ...



jturcotte_708.gif

Fig. Fig. 5: ... access the fuel line clips



jturcotte_709.gif

Fig. Fig. 6: Unfasten the retaining bolts and remove the fuel line clips



jturcotte_710.gif

Fig. Fig. 7: Remove the fenderwell trim



jturcotte_711.gif


Fig. Fig. 8: Remove the water pump pulley; it is retained by a shoulder bolt (shown)


jturcotte_712.gif


Fig. Fig. 9: Remove the retaining bolts and carefully remove the timing belt cover




timing marks:

jturcotte_713.gif


Posted on Jan 02, 2011

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Related Questions:

1 Answer

The car start, run ,and you can turn it off it take about 30min. Before it start back up.


Consider replacing the crankshaft positioning sensor. A crank sensor is an electronic device used in an internal combustion engine to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control ignition system timing and other engine parameters.
The simplest and most obvious symptom of a failing crankshaft position sensor is the blinking "check engine" light in your car.
According to Do It Yourself.com "When the crankshaft position sensor begins to fail, the signal it transmits to the vehicle's computer begins to weaken. If left unattended, the signal will switch off completely. This, in turn, causes the car's spark plugs to die out, killing the engine. If you are having problems starting your car, it could indicate bad crankshaft position sensor".

Of course this may NOT be YOUR problem, but it sounds like it could be, doesn't it?

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any time crankshaft pulley or crankshaft or engine remove the crankshaft position sensor has to be relearned or reset using GM TECH 2 SCANNER.if not engine wont start or have misfire problem.

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The cats should not cause the engine to die and not restart.
They could cause rough running, or lack of power.
If the check engine light is on you should have the computer scanned for trouble codes. The codes might help you find the problem area.
Usually the problem is a faulty relay or other electrical part, or loss of fuel pressure. Someone would need to narrow down the range of causes.

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CHECK ENGINE LIGHT ON ENGINE WONT START.BEST CODE CAN VECHICLE.IF ENGINE WONT TURN OVER.COULD BE WEAK BATTERY DUE TO ALTERNATOR FAILURE OR CRANKSHAFT POSITION SENSOR OR CAMSHAFT SENSOR FAILED.EGR VALVE STUCK OPEN.ECM HAS FAILED MANY THINGS WILL CAUSE THAT PROBLEM HAVE VECHICLE CODE SCANNED SAVE YOU MONEY AND TIME..

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P0355 is a code I am getting on my 96 pontiac grand am. the car starts sometimes and not others. and when it does sstart it is very rough. the engine was just replaced. could the crankshaft position...


the crank sensor will cause intermitent dieing while driving and a no start,,,common gm issue,a p0355 is for the crsankshaft position sensor performance,,or lack there of performance really,lol replace the crank sensor,,it will not cause a rough running though it will either run or not with a bad sensor, you might have 2 issues but i know the p0355 is a bad crank sensor

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bit confused...the cranksensor will be on the gearbox housing the camsensor will be near the cams not the gearbox if the camsensor has packed up it wont start but if it packs up while driving the engine will run untill you stop it then it wont start,a cranksensor could cause the engine to stop at anytime if it fails..your problem could be the idle air control valve or a timing related issue..

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