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Frank Dickerson Posted on Nov 18, 2015
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00 Explorer 4.0 ohv v6. If cam position sensor fails will it cause, #1 engine to die at hwy speed 60mph? Also upon trying to restart, it cranks very fast, is that poss. cam sensor failure too? Thanks

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montehammons

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  • Cars & Trucks Master 5,531 Answers
  • Posted on Nov 18, 2015
montehammons
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No, to the second question- sensor won't make it crank any different. Faster than normal cranking often means a broken timing belt -less friction with the valve train not moving, so engine spins faster. But you have a timing chain, right? Any engine noise when it quit at 60mph? You could watch some valve action through the oil filler cap while the engine is being cranked, to make sure the timing chain is still intact.
If all is good, check for spark and gas to the engine. If stopped while running, it could be a failed fuel pump or a problem in the ignition system- cam or crank sensor, ignition coil, ignition control module, some of the things to check if no spark.

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  • Frank Dickerson Nov 19, 2015

    I don't know if you are able to see the comments I've added since your awesome response to my question. So I found a fuse that is blown, it's located in the fuse box in the engine bay. More specific is, closer to the brake booster but mounted on the fender well I think or maybe wheel well mounted. But I haven't had a chance to see what it is servicing or whatever, what shuts down when it blows rather. It's the first row of mini fuses behind the huge maxi types if you're starting at the front end of the fuse compartment. Front meaning front of the truck. Do you know right off what this box is in charge of powering, or is it something I need to get a diagram for? Thanks for the time and help.

  • montehammons Nov 19, 2015

    You would have to find a diagram, like an owner's manual would most certainly show it, more doubtful if a Haynes or Chilton manual would show a complete description as they are severely edited versions of the factory service manual, probably better luck googling it, try that if no owners manual. One other possibility is a parts person at ford dealer might be able to get you a copy-but I don't know if they'd still have it. The fuses cover a lot of circuits, there would be a fuel pump fuse in that block, other engine accessories-alternator (big fuse, though),abs fuses, some lights, etc. Watch the fuse when you replace it and see if it blows again after key is on. Then you know you probably have a short in the wiring or a bad component. Let me know...good luck.

  • montehammons Nov 19, 2015

    Frank, I found that block. It's called a Battery Junction Box. But I may be seeing it wrong, I mean from how it is situated in the car-which end is to front. If relays are towards the rear: your first row of mini fuses are: (#9)- 20amp fuel pump and anti-theft system (RAP),(#10)- 15amp HORN, (#11)- 15amp Parking Lamps, (#12)- 30amp Headlamps and fog lamps. (#9 is toward the inside and #12 is to the outside of vehicle.) /// If relays are at the front of this box, your first row of mini fuses are (#1)- 10amp A/C clutch system, (#2)- 30amp Heated Seats, (#3)- 30amp Rear Window Defrost, (#4)- 15amp DRL, Fog Lamps---in this layout with relays at the front, #1 is to the outside, and #4 is towards inside. /// Hope this makes sense, I can give you a link to see the box, if you want.

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Loss of cam shaft sensor signal can cause a vehicle to die at any speeds but from what you are describing it sounds more like a crank shaft sensor failure. when this sensor fails the computer will determine that the engine is not rotating and will either cut off fuel or ignition spark. no fuel explains why the engine turns over so quickly without starting. spray carb cleaner or starting fluid into the air cleaner housing, where the air filter is and then try to start. if it starts or sounds like its going to start then your not getting fuel. if nothing changes and I still just turns over quickly then you don't have spark. figure out which one is missing and then you know which direction to go with the diagnosis

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Anonymous

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  • Posted on Jan 18, 2013

SOURCE: Engine died at hwy speed crank/cam sensor faults

o1 cruiser spit and sputter go down rd put cam sensor and crank shaft sensor on wouldnt run at alll with new crank sensor had to put old one on please hel

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1996 Dodge Dakota. Intermittent loss of CMP or CKP. Why is this happening?

Question edited for clarity.
Question moved to model category.

Sensor issues or wiring to them.

Code P1391 Dodge CMP or CKP Signal Intermittent ...

AutoCodes https://www.autocodes.com > p1391_dodge
Engine Light ON (or Service Engine Soon Warning Light) · Lack/Loss of Power · The engine may be harder to start · The engine may stumble or stall.

Cam Sensor Failure Causing no Start or Stalling : Dodge ...

RepairPal.com https://repairpal.com > Problems > Dodge > Dakota
On 3.7L V6 and 4.7L V8 engines the camshaft position sensor may fail causing the engine to crank but not start or it can cause intermittent stalling.

Dodge Dakota Vehicles With This Problem

RepairPal.com https://repairpal.com > Problems > Dodge > Dakota
On the 3.9L V6 and 5.2L V8, an intermittent connection in the crank position sensor wire connector can cause poor engine performance or the engine may crank but ...

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CKP - Crankshaft position sensor

<p><b><span>3.1) <span> </span><u>CKP - Crank shaft Position </u>(sensor)<u></u></span></b><br /> <p><b><u><span><span> </span></span></u></b><br /> <p><b><span>What is it?</span></b><span> This is an electrical device that monitors the position of the crank rotation.<span> </span>The output from the CKP allows the ECU to determine the ignition timing, injection timing (in the absence of a cam sensor) and engine speed (revolutions).<span> </span>Generally if an engine has both crank and cam sensors it is the crank sensor that takes care of ignition timing and the cam sensor takes care of injection timing.</span><br /> <p><span> </span><br /> <p><b><span>Where is it located?</span></b><span> Most usually the crank sensor is located on the 'back' of the engine on the edge of the flywheel housing above the starter motor mounting or on the underside of the engine block;<span> </span>although in this position it is much more prone to stone damage, corrosion and dirt.<span> </span>On some engines the crank sensor is to be found on the front of the engine taking its measurements from the crank pulley. <span> </span>In this front position the crank sensor is often more exposed to the effects of dirt, water splash, oil leaks and heat as well as being more awkward to physically access. </span><br /> <p><span> </span><br /> <p><b><span>How does it work?</span></b><span> The device can employ several forms of detector.<span> </span>Some are passive, needing no electrical supply and include; inductive-magnetic (sine wave output), and reed type. These are typified by having just two wires connected to them.<span> </span>Some are active, needing a power source in order to operate and include: magneto-resistance (square wave); Hall-effect (square wave); and optical type. These are typified by having three (or more) wires connected to them.<span> </span></span><br /> <p><span>The magnetic sensor is popular due to its simplicity and reliability, the Hall-effect type is also popular as it also reliable and its design allows for self diagnostic testing.<span> </span>The role of the CKP device is to detect the presence of magnet(s) or marker teeth on the periphery of the reluctor ring on the crank and to send pulse(s) back to ECU.<span> </span>The ECU reads these pulses and electronically triggers a spark at the appropriate point, advancing and retarding the ignition according to the speed of pulses being received.<span> </span>In older engines, perhaps where the cam sensor is absent, the ECU will initiate a spark every time TDC (top dead centre) is detected and each cylinder receives a spark <b>every</b> crank revolution even though ignition is only required on alternate rotations. <span> </span><span> </span></span><br /> <p><span> </span><br /> <p><b><u><span>Symptoms of faulty crank position sensor</span></u></b><br /> <p><b><span>Associated OBD2 error codes DTCs: <span> </span>P0335 - P0339; P1345</span></b><br /> <p><b><u><span><span> </span></span></u></b><br /> <ul> <li><b><span>Starting difficulty/failure/stall - </span></b><span>If the faulty CKP timing problems are severe they may prevent the engine to fire, to fire and then stall, or stall at some random time without warning.<b></b></span></li> <li><b><span>Hot engine shut off and failure to restart - </span></b><span>The engine may start and run perfectly from cold but will begin to misfire or suddenly shut off after about 15 minutes once the engine has reached operating temperature.<span> </span>This effect is due to thermal expansion of the CKP body causing an intermittent break in electrical continuity and therefore the signal output to the ECU is interrupted.<span> </span>Sometimes the engine will restart but fail again after a further 15 minutes.<span> </span>On other occasions the engine will not restart until it has completely cooled down.<b></b></span></li> </ul> <ul> <li><b><span>Misfire - </span></b><span>miss-timed spark delivery caused by a faulty CKP signal can cause misfire and back fire events. <b></b></span></li> <li><b><span>Hesitant acceleration, acceleration ceiling - </span></b><span>Miss-timed ignition due to a faulty CKP signal can be exacerbated by increased engine speed. The engine maybe run evenly at idle but will fail to accelerate properly at higher revs until the engine reaches a power ceiling.<b></b></span></li> </ul> <p><span><b> NEXT 3.1b) How to check and fix crankshaft position sensors</b></span><br /> <p><span><b><br /></b></span><br />
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1answer

2003 Nissan Xterra, 3.3 V6 SUV. The car starts but dies after 5 seconds.

so the DIES 5 seconds ,is only after works was done?
VG33E engines.
step 1 is always the IMMO lamp, on the dash, bad key or IMMO not happy can cuts spark 1 to 10second after crank started,
the knock sensor never kills dead any engine, what waste that.
and risking vacuum or coolant leaks doing,so.
knock sensor only fine tunes spark (retardded-sic) for poor grade gasoline that is all it does.
Sure broken wires to IAC, yes. or CAM belt is bad see below
or left off vacuum hoses, to many things even brake booster, and PCV and more. look again use flash light see hoses going know where, that you pulled.
or did all that work and forgot step1, in the manual remove NEG lug on Main battery first. so now fuses are blown so check fuses first.
right hot foot works and proves, loss of idle air, that test is important
and super rare here reported. thanks for doing that test.
po430 is bank2 O2 failure. for now ignore
P0328,knock, sensor, (may lie of bad it is just a mircophone. but what if it really is knocking cause by EGR failure. when EGR sticks closed engine knock/ping,detonate and this sensor hears it.
and retardds(sic) timing.

did 328 start you on all these events, and work? not told instigator
what caused day 1 hood up events?

the 3.3L engine is SOHC. and has cam timing belt. and can bend valves slipped.
no miles on engine told and if the cam belt fails. as they all do and soon (60k to 100kmiles they all fail) Gates belts can go 100k.

the 2003 engine line up is. (bet no turbo correct>?)

Gasoline:
2.4 L KA24DE 143 hp (107 kW) I4
3.3 L VG33E 170 hp (130 kW) V6
3.3 L VG33E 180 hp (130 kW) V6
3.3 L supercharged VG33ER 210 hp WHAT IF ALL THOSE ERRORS ABOVE ARE ALL FALSE?
TRY TO KNOW THAT IF THE SILLY CAM BELT SLIPS
MANY THINGS FAIL. (DTC that make zero sense)
BEST BELT IS (CAM)

GATES TCK249 PowerGrip
When any belt slips, the cam retardds(sic) timing and causes huge cylinder compression loss and even KNOCKING and sensor knock brain does no understand that and lies to you, (it's not AI) and bending valves to make a huge knocking sound.
spark timing fails. too for cam and cuts spark or runs like a wet dog.
1 cam per head, and 2 rocker per cyl and 12 valves total.
the best is a prime A#1 SERVICE POINT. to know is....
nissan engines are listed as All Interference.
that means cranking it with bad belt above bends valves.
if valves bend s that is a huge impact noise the knock microphone hears and confuses it so it s huge huge distractions.
so given all that, we don;t crank it now,
we check cam belt for (wrecked, shredded or slipped out of time by full inspections first, keys in pocket.
some times you get lucky and no bent valves (but try not top cause it)
after all we don't know how the belt failed yet.
not looking. but if it snapped, in point the cam is SAFE
then no damage happens. So do not listen to the persons clueless to this fact.,
if going fast and cam belt slips, the cars wheels and transmission keep spinning the engine, and BAM ,bent.
ever drive down a hill using engine compressing to slow a car?
and at that moment the silly belt slips. (BAM)
yes complex factors of when it failed and how matter.
Frankly I do the tests,not stand and wonder or guess, or do worse acts.
so we inspect it first. (cam timing) viewed.
if bad belt fix the bad belt now ,by hands and eyes, keys in pocket
then..
and do cylinder leak down test TOOL by hand see if valves are good in the head.
this is a TOOL using shop air to do it. and not make it worse.
last then crank it.(valves good)
1helpful
1answer

My 1998 Ford Explorer 4.0 ohv manual trans starts then immediately dies.relays-good fuel pressure-good fuses-good new fuel pump idle air control valve new egr help!

THAT HAS A HUGE LIST OF CAUSES BUT BREAKS DOWN TO
THE BIG 3. (we find it with tools) otto cycle Gasoline/petrol
  • bad engine (compression good?)
  • bad spark ( try new cap,rotor , wires and plugs?or 6x coil pack./
  • bad fueling or bad fuel. , fuel pressure at spec?
top cause is no tune ups done in 24 years,
all spark parts are bad. (no engine told)
all fuses good/?
test #1 is can you keep it running with a fast right foot actions.
i dies and repeats, or dies and needs to sit for hours to repeat this start fail act./
there were 3 engines then/
4.0 OHV v6
4.0 SOHC v6
5.0 v8 (uses twin quad lug coil packs) and hv wire sets. spark
no engine told so no why to get specific at all just ASE basics basics above.
try a tune up, at least, HV wire sets and new spark plugs gapped right.

and scan scan the PCM see if P03xx errors are stored there.
key on.
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2001 DODGE Ram 3.9L manual trans reoccurring p1391 , p0340 . Both sensors have been changed . Runs good for about 10 mins. Then quits . Will restart after cool

2001 DODGE Ram 3.9L manual trans told. (m/t box is best )
5.9 L (360 cu in) V8
ram 1500 or up to 4000 or VAN?
NO TURBO correct?
no miles on car ;/engine, told, 250K or more? ever see car run perfect before?
we can not guess trucks, wiring is the same on all RAMs made 2001,. so I GUESS 1500 Pickup.

wants to fail hot.
340 is cam sensor errors
1391 Faulty Crankshaft Position Sensor (CKP) or CMP or they do not agree. called out of sync./
just those 2 tells me cam chain is bad. for sure sync failed.
the PCM can not correct errors cause buy cam timing jumping like mad. No it can not. (tiny yes super tiny play)
some of these 3.9 SM shows some have facing left cam chain tension'er, and is bad.
heads are push rod , OHV, not sohc or dohc.
or far worse problems or engine overheats and pings causing
sensor to go nuts with chain jogging.

wow 3.9 is distributor in 2001, 1/2 are 1/2 are not by Liter.

so the firing order not set wrong , correct?>



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I have an 03 Jeep Grand Cherokee v6 2x2 with 170k... I'm having a couple of issues... 1. Occasionally will have trouble with cycling through gears when getting on Hwy causing decreased, sluggish...

I would consider changing the vehicle speed sensor. When they go bad, they can really throw out a lot of bad data to the computer, resulting in unexpected behavior like you're experiencing. They're only around $20-$25. I hope this helps! :)
0helpful
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Engine died at hwy speed crank/cam sensor faults

o1 cruiser spit and sputter go down rd put cam sensor and crank shaft sensor on wouldnt run at alll with new crank sensor had to put old one on please hel
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