michaelwelch
New Member
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1994 Silverado 2500. 118,00 miles. Engine replaced at about 75,000 miles with 1998 engine with 55,000 miles. Looking for the the most reliable PMD.
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1994 6.5 turbo diesel
- Thread starter michaelwelch
- Start date
MrMarty51
Well-Known Member
Whatever brand You get, get two. Also if the pump driver is not relocated, get two relocation kits. Mount them both behind the front bumper, run the spare harness up to the IP so if one driver fails the other can be simply plugged in and go again.
Leroy Diesel is a good dependable source and so is Quadstar tuning. Both sponsors of this site.
Leroy Diesel is a good dependable source and so is Quadstar tuning. Both sponsors of this site.
MrMarty51
Well-Known Member
Also when ordering the PMD kits, also tell them You need a plug for the spare harness.
That plug can be applied to the spare harness terminal plug to keep out dirt and unwanted debris.
That plug can be applied to the spare harness terminal plug to keep out dirt and unwanted debris.
Will L.
Well-Known Member
Exactly what was said above. Except the spare plug- before installing it you fill the back side with silicone and let in cure before installing on the spare unit. This is how you keep it clean.
If you have a working pmd now, then only buy one. But drive in the new one from Leroy because it has a lifetime warranty. You have your old one as a spare ready to go. Eventually, the new one will fail. When it does fail or when you are questioning if it is messing up, switch to the spare to test. If you need to send in the warranty one, you have the spare to drive on until the warranty one gets replaced.
Having a spare is like having a spare tire, “wasted” money until needed.
Also there is no test procedure other than “replace with known good” as instructions from GM.
If you choose to buy a pmd or other parts outside of Leroy or other vendors here, mention where you are considering because there are places we have learned to avoid.
When done with the pmd situation, I suggest learning about the rest of how we can help.
Engine temps always under 220 no matter what, balanced foow coolant system (no rear head cooling kits as they cause problems).
Oil cooler hose failures.
Harmonic / balance issue.
These are all most common engine killers.
If you have a working pmd now, then only buy one. But drive in the new one from Leroy because it has a lifetime warranty. You have your old one as a spare ready to go. Eventually, the new one will fail. When it does fail or when you are questioning if it is messing up, switch to the spare to test. If you need to send in the warranty one, you have the spare to drive on until the warranty one gets replaced.
Having a spare is like having a spare tire, “wasted” money until needed.
Also there is no test procedure other than “replace with known good” as instructions from GM.
If you choose to buy a pmd or other parts outside of Leroy or other vendors here, mention where you are considering because there are places we have learned to avoid.
When done with the pmd situation, I suggest learning about the rest of how we can help.
Engine temps always under 220 no matter what, balanced foow coolant system (no rear head cooling kits as they cause problems).
Oil cooler hose failures.
Harmonic / balance issue.
These are all most common engine killers.
michaelwelch
New Member
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I appreciate your advice. Mounting both PMDs makes a lot of sense. I am sure it would be a good time to also replace the oil cooler lines and the harmonic balancer as preventive maintenance due to their age.