When to change injector pump.
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Posting Guru
Joined: Oct 2005
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From: Powell River B.C.
When to change injector pump.
As I mentioned previously just changed injectors, truck is running great. 93 7.3 f-350 4x4. I've had this truck a year and a half, it has 242,000 km or about 150.000 miles on it, I believe it has the original IP. I always add diesel lube with every tank fill. What are the indications that an IP should be changed, I don't really want to wait until this one turns turtle to find out, but I don't want to change out a good pump either. Thanks for the input.
Senior User
Joined: Mar 2006
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When and if you do replace the IP, make sure you upgrade it, apparently the stock replacement has a plastic [I think its a govener?] and the upgrade is metal...the shop I talked to say the IP with the plastic [?] last approx 100,000 km, thats when mine packed it in. The IP I have now is the upgraded one, it has 100,000 km and I use a diesel additive as well. So if your on the original IP, your doing well and says a lot for useing an additive. lol
Posting Guru
Joined: Sep 2002
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From: Northeastern Pa - USA
if it aint broke .. dont fix it. if the pump goes bad it will let you know by strange actions of the engine (stop running or pulsate real bad) or it will leak fuel from the weep hole in the bottom of the mounting neck. use of the fuel lube is excellent decision. buy and use clean fuel and keep after the filters, you shouldn't have any problems. as the newer, extreme low sulfur fuel comes around, you may have to use more additive.
Fleet Mechanic
Joined: Sep 2005
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From: Ladner, British Columbia
I got 215,000 km on my 93 IP now and it is running better now than it ever has. Smokes less than it ever has even under heavy load or at altitude.
I have always used additive (Lubricity, Howies, Diesel Tone, Diesel Kleen, take your pick) and have installed a 2 micron Racor filter the day after I bought the truck new back in 93.
I have seen enough water and dirt in my racor filter over the years to make me thing that it definetely was worth the investment.
Don't fix it if it ain't broke, keep given her the additive, especially with the new ULSD (Ultra Low Sulphur Diesel, < 15ppm sulphur) that is now starting to be sold at most stations (atleast here in Canada, not sure about the US).
I have always used additive (Lubricity, Howies, Diesel Tone, Diesel Kleen, take your pick) and have installed a 2 micron Racor filter the day after I bought the truck new back in 93.
I have seen enough water and dirt in my racor filter over the years to make me thing that it definetely was worth the investment.
Don't fix it if it ain't broke, keep given her the additive, especially with the new ULSD (Ultra Low Sulphur Diesel, < 15ppm sulphur) that is now starting to be sold at most stations (atleast here in Canada, not sure about the US).
Posting Guru
Joined: Jul 2004
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From: West Valley Utah
The original IP's had a plastic coupler (internal) and if I remember right the advance at the rear of the pump had a nylon sleeve.
The coupler would start to come apart, clogging lines and the advance gets a lot of wear on the sleeve. I had around 100,000 on my 84 when I got the pump rebuilt and calibrated for a turbo.
The coupler would start to come apart, clogging lines and the advance gets a lot of wear on the sleeve. I had around 100,000 on my 84 when I got the pump rebuilt and calibrated for a turbo.
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