Recent content by Actrac

I'm back with need for advise. Update to present, Had WP replaced and pressure tested, all went well, no external leaks, etc. Truck ran well, NO coolant loss for about 1 month or so. Now I'm losing coolant every 2-3 day's, light on dash, when cool tank is low. Took truck to shop today...

Do local auto parts store sell a oil sample kit or do I need to send it somewhere? Because of low mileage put on truck each year that has me trying to keep it on the road. Assuming the heads aren't cracked. I agree the oil sample will be the best way of seeing now that WPump is fixed. I went...

Update/Work completed garage pressurized system and found WPump leaking, another minor hose leak. They are convinced my heads are good by looking at oil, etc. I asked them to pull VCover and do inspection, but they were not inclined. I figure 1 step at a time. My question is; Now that leak is...

Thanks much for the the help TFerm, I was snooping around engine today, and looking at heads on internet, I was told 6 months ago by mechanic it needed a WPump, it was in shop for other work. I suspect as you with the milky stuff under filler cap I have head problems. I did read that not all the...

After looking back some pages I have read the tread involving coolant loss like I'm having. I read the article explaing the cracked heads syndrome on these 01-06 5.3's. Assuming this is my problem, my engine is most likely doomed now. Question 1 is; Is there a newer 5.3 bolt-in from junkyard...

My 01 GMC Yukon work truck has 195K miles, last few months I have been losing coolant daily. I was told by garage a few months ago my WPump was leaking and suspect this as my major cause. I have noticed some white foaming at oil fill cap, do these engine have a gasket issue at plenum/intake area...

Photo of 01'. Drove it today, drives like a dream. Called dealer and gave them the bad news [on the 99" BB truck]. Going down in AM to buy this one. Little high on miles, but they did a bunch of work it needed, runs soooo smooth, shifts good, only thing I want to check is 4Whl drive operation...

Yes, the 973's are the correct number. This seller had 10's of them, but was out when I called. He's selling the 579's new for $35 and everyone has been pleased with there performance in the 7.4's. Based on advise to change the stock Injectors [ sound like good advise], If it helped MPG even...

You guys are most likely tired of all my questions. I'm at impass to decide which of these trucks to purchase. I would like to proceed and get this behind me. All comments/suggestions/advice appreciated. I'm leaning towards 3/4Ton/BB I will have to pay more $$ for slightly older vehicle, but it...

I did just speak w/ MotorMan.com he is injector rebuilder/supplier. He was out of new Bosch 4 holers, but has re-builds for $25 each, that more my kind of price. He did say his 0280150569's Bosch 4 hole brand new will work fine in the 7.4 [ they are listed for some ford engine], at $35 each, Is...

If I get this 99' Suburban K2500 bought, What should do immediately to prevent any trans. issues. I expect it will need a re-build before you know it, but I need to buy time until money is flowing better. Any suggestion appreciated. I have a great trans shop 20 miles from me, I would have him do...

After reading advise from my earlier post reguarding the 7.4L's I may be getting close to buying the 99' w/ 7.4L. In test drive, it runs "rough" at stop signs, lights, etc. It appears it may need a tune-up at minimum. There was a comment to change orig eqpt. injectors w/ Bosch, I cannot find a...

Can the 4l60E be upgraded to the 5.3L easily? The trans in this Sub. has just been re-built, so I should get some service out of it. In the meantime, I would buy a good/re-built 4l80E/ or whatever you folks tell me would be good upgrade, then I would ready when it craps out. It's sounding like...

OK, Thanks for the input, now there is a 01'/1500/5.3L Suburban that's priced well, trans is rebuilt at 110K, vehicle has 133K total, Is this engine OK, I guess I could crate motor 5.7 when the 5.3 craps out, any thoughts?

Hi, Newbie here. I'm looking to purchase a used Chev. Suburban. The 2500 series usually have BBlks, 7.4/8.1's. Are these engines good? Is one better than the other? I'm actually thinking I would prefer a 2500 series with a 5.7 for better fuel economy. I will not be towing often or heavy loads...