Old Expi , new fun

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Brian Stigall

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Hi all,

Happy 2021 from Colorado. This is my first post for my new to me 99 Expi EB. I have two questions for the group -
1- Need to change the plugs and coil packs (have 170K on it), been reading that this is a pain in the ass, with plug breakage issues. Need some guidance to get this done with out trashing a plug. Any suggestion for new plugs/packs

2- As expected the air pump killed it self, so a conversion is on the list of thing to do ASAP. Seen a couple different companies that have air to coil conversions. The Strutmaster kit seems to be the go to kit from what I have read. Any advice would be great

Thanks
 

Killer Ride

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I have done plugs on these motors dozens of times and have never had any problems. Well except for the back 2 but only cause they are extremely hard to get to. Oh and the next one to the front from the back on the drivers side it's right under the fuel press.regulator.
As far as the coil conversion Strut master as good as any. I installed mine but previous owner purchased them. Mines a '98 I absolutely love this vehicle. I also live in Colorado around the Denver area

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Brian Stigall

Brian Stigall

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Killer Ride, Thanks for the input. I am out in Kiowa, east of Castle Rock. Gathering all the info I need to get this done soon. If you have any pointer, special tools needed let me know. Thanks
 

Trainmaster

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You'll have no problem changing the plugs. Use a torque wrench or $28 torque limiting socket to tighten them. These are known to blow out and strip the heads if not tightened properly. The heads only have three threads in them, so that's the problem with these.

No need to replace a coil unless you have a missing cylinder. Most last the life of the truck.

I got 260K miles on my 2000 before it finally blew a head gasket.
 

Killer Ride

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1/4 in drive an extension, an extendable magnet, 7 or 8mm socket and a swivel to remove the cops. Blow out each plug hole with compressed air before you pull the plugs, so no debris falls into the cylinders. Use an 8 or 9in peice of hose to start each plug then tighten firmly but not hard it's an aluminum head and steel plugs so be careful, no cross threading. A 3/8 in 9 -12in extension, 6in and maybe a 4in one and a swivel will help. I use an impact driver to help speed up disassembly
They say you need to separate the ball joint from the hub carrier on the front spring change but I did it with out doing that takes a little finesse but it can be done. You have to jack it up a little higher to get it in from the bottom hole on the lower A arm

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