Re: '95 GMC 6.5TD engine

Posted by Bob on September 06, 2006 at 17:33:44 from (66.163.134.211):

In Reply to: '95 GMC 6.5TD engine posted by JCSinGA on September 06, 2006 at 14:23:21:

You need to get the system "scanned", and see what's wrong with your electronic injection system.

After a few years of updates, they got them really good, for the most part.

The electronic pump will generally help the engine start better and run cleaner and better than the mech. pump, with SLIGHTLY better mileage.

If you insist on going mechanical, you can use the same injectors, but be sure to get the mech. IP for a turboed 6.5. You will pay a premium price for that pump, over a NA 6.5 or a set-up 6.2 pump, but it has a different head and rotor for the higher fuel flow, and higher "pop pressure" injectors used with the turbo 6.5.

One thing you may not have thought of... the ECM used with the electronic IP also controls the glow plugs, and, if that 'puter is unhappy with what you've done by putting on a mech pump (as it SHOULD be), you MAY have the install the glow plug controller for an older engine. (The controllers LOOK the same, but aren't. The controller used with the electronic IP uses a 3 wires of it's 5-pin connector, and the "standalone" controller used with the older engines uses 4 pins of the same 5-pin connector.)

Post back, if you need more help!

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