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Help! 98 V70r Cranks, Sparks, Has Fuel, Won't Start


Tyler T5R

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The car: 1998 V70R, 195k miles, has stage 0, recent PCV system replacement, well maintained.

The scenario:

Car has been running great for the first year we've owned it. About two weeks ago I decided to park it until I could replace the rear brakes. Last Friday, my wife started it up to move it away from a tree before we left town for the weekend. That was the last time it ran. Yesterday I tried to move it so I could jack it up and do the brakes, but no start.

It does crank over. I charged the battery, and the same battery works fine in my 850.

I tested for spark - it has spark.

I bought a fuel pressure tester. Turn key to position II, hear fuel pump run for 1-2 seconds, and fuel pressure goes to about 41 psi. Leave it for 2 hours, fuel pressure is still around 40 psi.

Unplugged MAF - no start.

Took off distributor cap and camshaft position sensor - neither had oil in it. Put them back.

Local expert suggested it could be fouled spark plugs, so I installed the spark plugs (Volvo) from my working 850 - no start.

He also said it might be timing belt broken or skipping... but I fortunately verified the intake camshaft is turning when the engine cranks. While I was watching the camshaft and my wife was cranking the starter, it did seem to try to catch a bit, but to no avail.

Still won't start.

Any ideas anyone?

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How & where did you check for spark? Did you examine the dist rotor & cap contact points?

Pretty much if you have fuel, and you have spark, unless the timing was way off, it should run.

When you removed the plugs were they wet?

How about the fuel filter? did you also check fuel pressure when cranking as opposed to static pressure?

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How & where did you check for spark? Did you examine the dist rotor & cap contact points?

I used BluePoint inline spark tester (YA840) on cylinder 1. It flashed orange as I cranked it. I did the same on a working 850 to verify.

Dist cap and rotor aren't in great shape, but they look OK and are not oily or anything.

Pretty much if you have fuel, and you have spark, unless the timing was way off, it should run.

Easiest way to check if timing is way off?

When you removed the plugs were they wet?

No, I wouldn't say so. They're a little dark, but putting good plugs from my T5R in this car didn't change it.

How about the fuel filter?

New last Aug 23 (that was fun!).

did you also check fuel pressure when cranking as opposed to static pressure?

Not really, can do that today.

Thanks

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Well, it's fixed. This post from V70R.com had it:

DAZ-13B: How long was the car run when your wife moved it?

If you moved it a few feet and didn't let it warm up it could be be flooded. When a fuel injected car is started cold it is in a rich state until

the engine warms.

Try cranking with the gas pedal flat to the floor it does two things ,clears the combustion chambers, and turn the fuel injectors off, once you get it firing

release the gas pedal and it should run from there smile.png

I tried that and it works now. So simple... could have saved me so much tinkering. Back to fun stuff like brakes and coolant hoses...

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Glad to hear it was only "lawn mower syndrome" (you move the car a few feet to get at the lawnmower, and the car won't start when you come back.

I had a similar problem with my 98 R after parking it over the Winter. mine turned out to be the ignition coil.

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