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2000 s70 glt

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Just got a 2000 s70 glt. First Volvo. Maintenance records up to 207,000 miles. Currently at 230,xxx. Everything changed when it was supposed to. Got it cheap cause it needed new thermostat sensor and heater core. Already replaced. Thinking the pcv valve is clogged. While I have the manifold off what else should I replace. I want it back to new condition. I really love this car so far.

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Sounds like you found a nice one! While doing the PCV job, I always make sure to change all of the cam seals if they're leaking (usually what happens when the PCV goes too long without being replaced). The one part I can think of that you should replace/upgrade while replacing the PCV components is the banjo bolt on the bottom of the intake manifold.

To make for easier access, it helps to remove the alternator. You don't necessarily NEED to, but it saves a lot of aggravation while replacing that banjo bolt. The updated part number you need is 31325709 (https://www.fcpeuro.com/products/volvo-pcv-banjo-bolt-turbo-c70-s60-s70-s80-v70-genuine-volvo-8653884). This updated bolt has a check valve to prevent boost from getting into the PCV system.

Also be sure to clean out the ports on the block for the oil trap really well, they tend to get really clogged up. A pick and some carburetor/brake cleaner works well for that.

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