SPI Maintenance

[shjeeper]

Got the head switched out.. The head from headsonly worked out great. I also replaced the timing belt tensionor, water pump, timing belt, and IAC. Of course, everything else was cleaned out the best I could. I've put about 400 miles on it, and will check the compression here in a couple days.

Now however, it revs up to ~2k rpms on a cold start for about 5 seconds. Afterwards it knocks back down to about 1400 rpms like it always did, until it's warm and levels out at around 700-900 rpms. Any ideas?

[shjeeper]

So I got the scanner out and found out my RPM's were actually jumping to 3k at start up. I subscribe to the theory that the most engine damage is due to startup wear, so I wanted to fix this ASAP.. I yanked the new IAC out and put the old one back in after a thorough cleaning. It works just fine now.

Autozone just gave me a $100 gift card because one of their parts cost me $100 from Ford for them to tell me it was wrong... their motor mount has been causing me troubles, and now their IAC is defective, go figure.

[Donnyd21]

Stay away from Duralast parts! If you can spring the extra bucks NAPA has quality parts that are usually made in the US.

[TheGlassMaker]

Duralast is ok, it kinda like needing a family car or a work truck and you go buy a GM product. It will get you by but its cheaply made and will fail sooner than later.

Napa isn't worth the price. Just get motorcraft and call it a day. Rockauto.com sells oem parts like motorcraft for way cheaper than you can buy at a ford dealer.

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