tell me how and when this problem begin
do you get any computer codes?
is it a js,jx or jlx?
2wd or 4wd?
started car this morning went to store got some gas came back home,30mins later wife tried to start car to go shopping would not start,no computer codes
the starter does turn the engine...but no injector pulse?
do you have a spark?
does the engine seem turn the engine easier than before?
have you had any trouble before,,,did it ever stall?
hav had car for a month no stall
it will start if you spray starting fluid into the throttle body?
how do you know it has no injector pulse?
let me try that giv me few mins
are you there?
hav to go buy stater fluid
found starter fluid still no start
how many miles is on it?
does it have a spark on the spark plugs?
sense it wont fire when your spray starting fluid into the throttle body
and it does have a spark
i think it has jumped time on the timing chain
it does have allot of miles..and i would think the chain has never been replaced
if it were in time
and has a spark
it should fire with the stating fluid
your next step is to check te compression of the engine..it should have over 100psi on all cylinders...if not,,it has jumped
is it intergrated motor?if it jumps timing chain does it damage valves?
yes..it is possible for the valves to hit the pistons
sometimes the tensionor will let go,,and cause it to jump time
engine compression was 160psi
on all cylenders?
it would start
or t least fire
only checked 1 cylinder
and it has a spark on that cylender?
if that is the case..it is firing at the wrong time...this is unlikley
GENERAL DESCRIPTIONThe ignition system is a direct ignition system. It consists of the parts as described below and has an electronic ignition control system. - ECM (or PCM) It detects the engine condition through the signals from the sensors, determines the most suitable ignition timing and time for electricity to flow to the primary coil and sends a signal to the igniter (in ignition coil assembly). - Ignition coil assembly (including an igniter and an ignition coil) The ignition coil assembly has a built-in igniter and ignition coil which turns ON and OFF the primary current of the ignition coil according to the signal from ECM (or PCM). When the ignition coil primary current is turned OFF, a high voltage is induced in the secondary wiring. One ignition coil is in charge of ignition of one cylinder only. - Spark plug and noise suppressor - CMP sensor, TP sensor, ECT sensor and MAF sensor. This ignition system does not have a distributor and high-tension cords but each cylinder has an ignition coil assembly (igniter and ignition coil) and the secondary voltage which occurred in the ignition coil is sent to the spark plug directly. Also, the signal(s) are sent from the CMP sensor to ECM (or PCM) so as to control each ignition coil independently through the igniter (in ignition coil assembly).
it is posible for the crank sensor to do this
if it isnt the crank sensor
i would think it is the pcm-computer
i think it is in time if it has this much compression
Check crankshaft position sensor referring to Steps 2 and 3 of DTC P0335 Diag. Flow Table in "Computers/Testing/Trouble Code Procedures". If malfunction is found, replace.
does it hav crank sensor whats its location?
jeck all fuses before you do anything
again..fact is,,if it is sparking at the right time and has compression,,it should have fired with the starting fluid,,regardless if it has a fuel problem
i hope i have help you some
all fuses are good
carry on with the teststs i gave you
should we check crank sensor or pcm computer,
the crank sensor
there is no good test you can do for the pcm
seems like very expensive fix just bought truck,if pcm was bad would it hav these symtoms described?
yes..it is posible
but,,check the spark,compression and crank sensor first
seems like it would be easier to replace pcm computer first.did some research pcm computer was recalled for defect
well..it doesnt codt anything to test
the pcm will cost
replace it last resort
it doesnt cost anything to test
sorry for my spelling
hitting every key exept the right one..lol
sorry dont understand ur response
you need to do those tests,,to make rule out the crank sensor
before buying the pcm
just to make sure
you can not return the pcm
when you buy it..it is yours
sorry what is test for crank sensor?
i posted it above
CAUTION: As ECM/PCM consists of precision parts, be careful not to expose it to excessive shock.Removal
1. Disconnect battery negative cable from battery. 2. Disable air bag system (if equipped) referring to "Disabling the Air Bag System" in Air Bag System. 3. Remove ECM/PCM cover from bracket.
4. Disconnect connectors from ECM/PCM. 5. Remove ECM/PCM with bracket.Installation 1. Install ECM/PCM with bracket to vehicle. 2. Connect connectors to ECM/PCM securely. 3. Install ECM/PCM cover to bracket. 4. Enable air bag system (if equipped) referring to "Enabling Air Bag System" in Air Bag system. 5. Connect negative cable to battery.
the motor wont run to do test
yes..but it will turn over
or,,you may want to replace it,,before replacing the expensive computer
will it be cheaper to replace crank sensor than pcm?
the crank sensor is much cheaper
i would think under $100+/- at your local parts store
ok iam going to rate u high,i was concerned that taking trans down would be pricey.
you have a merry christmas