97 caravan 3.0 spark on 1 and 4 only

[parads42]

new rotor, cap and battery, have 190v from coil, can hear start relay click, have fuel from pump.

[RIP]

Plug wires? Plugs? Hows about a little more indepth history of what's going on? You can spin your statement two ways: "can hear start relay click" implies it's not cranking; "Spark on 1 and 4 only" implies it's cranking but not starting. Please clarify. Anything messed with prior to the problem showing itself?

[parads42]

SORRY IT IS SPRAK PLUG 1 - 2 THAT SPARK, NOT 1 -4. new plugs and wire last year, i took a new plug and put it on the frame and turn the key to start, tried with every wire, can only see a spark on wire 1 and 4. i can hear the starter turning and the serpentine belt turning. last week end the vehicule would stall when idling. i could hear some noise coming from the engine on the left side if your facing it. it has 250k.

[Christ]

What did the noise sound like? Can you be more specific about what part of the engine the noise was coming from?

[parads42]

From what i heard with a wooden rod it sounded like it was coming for around cyl 1 - 2 or timing belt, it was intermitent at a fast pace, like metal hitting.

[Christ]

Top end of engine - lifter tap (not likely to sound like metal clacking)

Bottom end of engine - rod knock (more likely to sound like small blocks of wood clapping together very quickly, or like metal hitting a solid object quickly... clack clack clack clack noise, can also be accompanied by growling/grinding noise and/or "jackhammer" noise.)

If it's the first thing, take the valve covers off and adjust the rockers as per the FSM.

If it's the second thing, get an engine form a junkyard, then teach yourself how to rebuild the one in the van, for when/if the junkyard engine goes.

[parads42]

distributor shaft is good, could it be the pcm or crankshaft sensor or ???

[parads42]

I will do what you said i'm buying an other engine to rebuild 150k on it, beside the usual all oils, all filters, all belts, water pump, what else should i change on the motor and the front wheel drive.
Thank you in advance.

[Christ]

Bearings, rings, check all components for obvious/major wear and conformance to specs.

Maybe valve guide seals too, which will require a special valve removal tool to compress the high tension springs. You can rent (read: borrow) any tool you can think of just about from AutoZone, they charge you up front and you get a refund when you bring it back.

Alternatively, you can keep the rented tool, but it's often used, and they often charge more than a comparable "off the shelf" tool would cost for the rental.. best you just return it and get a new one, most times.