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A little background, the Suburban has approx. 265k miles, new injectors and pmd within the last 5000 miles. The injection pump was replaced by the previous owner at around 150-160k, lift pump was replaced 10k miles ago, fuel filter about 2 months ago. Over the last month, the truck would from...

Hummer is 1995 H1 6.5 non turbo diesel. It is shifting hard between 1st and second (4L80E). Took it to a trans shop and they said it doesn't seem like a trans problem, said the throttle position sensor may need to be adjusted. Has anyone on here had any experience adjusting the sensor. I...

1997 Surbuban, 6.5L, auto, 4x4, 4:10s, 247k miles, new injectors, glow plugs, vaccuum pump, batteries, fuel filter, lift pump within the last year. Injection pump replaced at approx. 150k miles. I've read other posts on this problem, did the fixes that I found, and I'm still having...

This has been discussed on here many times probably, but I want to bring it up again now that diesel here has hit 4.19 a gallon. I have 97 Sub w/ automatic and 4:10 gears. I've replaced the injectors due to having approx. 130k miles on them and I'm saving up to replace the injection pump also...

-------------------------------------------------------------------------------- I have a 97 K2500 Suburban, 4l80 trans, 6.5L. Injectors and glow plugs were changed approx. 3500 miles ago. Pmd is moved over to fender well w/ heat sink. On the way home last night the truck suddenly started...

Let's start off saying I'm a pretty good diesel mechanic, mostly working on Fords and constructiion equipment. I've spent the couple nights working on my Suburban to change the glow plugs and injectors. Injectors because I'm not sure how many miles are on them and the glow plugs because she...

I was just out getting lunch when pulling out of the parking lot the suburban just died, like someone turned off the key. I put the truck in park and started cranking it, no fire. Since I was in a busy area I let the truck roll back into a parking spot and opened the hood to have a look. I...

I recently took a nasty fall and hurt my wrist, it's looking like it will be a while before I can turn a wrench and I usually do all my own work. My problem now is that I really need to have the glow plugs changed on my 97 suburban, hard starting at 50F this morning. I have a new set of...

I'm having issues with my Subruban starting. I'm leaning towards the ignition switch in the steering column but want a second or third opinion. This past Friday I got in the burb to head out, hit the key and nothing, not a click or anything. I was in a hurry so I jumped in my other truck and...

My suburburan started to have a wierd noise coming from the engine today, It's coming from the alternator / vaccum side of the motor. I took the belt off and started the motor, no noise. Alternator is new so I'm kinda ruling that out. My thought now is the vacuum pump, I turned it over when...

Does anyone here know how to test the rear window defroster. On my 97 suburban the light comes on when the button is pushed, but the unit is not clearing the rear windows? What should I look for. I'm assuming it's not a fuse since the light comes on. Any help will be appreciated.

I have the 6.5L w/ 4l80 transmission, 4x4, w/ 4:10 gears. When travelling down the road at approx. 40-45 mph, with the engine rpm low, the tranny begins to shudder like the convertor is trying to lock up. My buddy told me to just change the fluid to a synthetic and it should cure the problem...

I have a little exta cash this month and want to do some preventative maintance and fix a couple problems on my Suburban. I was looking for a set of glow plugs on ebay and found this auction for injectors and glow plugs. Since I just got the truck last fall with 223k miles on it, and I don't...

two problems guys, first, if I let the truck sit for two-three days it will not start without the aid of little squirt of ether. I don't like doing this. My first thought was glow plugs, but if I drove the truck the night before, no matter how cold it is the next morning, it still starts right...

Guys I need some advice. I just got this Suburban recently. I went to change the oil in it yesterday and had a hell of a time trying to remove the oil filter. What a dumb ass place to put it. I can see why it has an adapter to rotate it, but after an hour of screwing around with it, I still...

All right, I've been using Rotella 15-40 in my Fords all these years, should I continue to use this same oil in my 6.5L burban? Is there a better oil for the GM engine? Any addatives I should add when I change the oil, I always added a quart of Lucas to the Fords. Now the Ford held 14 quarts...

Alright guys, now that my burban is running good, I'm looking into the maintenance / upkeep. I see a lot of posts about removing the vacuum pump, but when I did a search as to why to remove it, I did not find anything. I'm not a patient guy, so I quit looking and started typing. I know with...

I was at another site, and after a couple days, I got no help. I was told this was the sight to use, I'm getting desperate here. Here is what I posted on the other site I've read through many older posts and I see problems common to mine but not exactly what it's doing. Keep in mind that I'm...