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    GM Pickup Engine Miss

    Thanks for all the input. I'll be supplying these comments to my mechanic when I take the truck back to him next week. pmt
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    GM Pickup Engine Miss

    My 2003 GMC Sierra 4.3L 6 cyl (97,000 miles) has developed a serious engine miss. It runs OK when started up cold, but once it fully warms up the stumbling and missing begin; sometimes so bad that the truck shakes and slows down. But the Check Engine light never comes on. Work done so far: new...
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    Redline oil ester based for nissan's ?

    My son recently bought a 2008 G37 - the last model year that the G37 had a non direct injection engine I believe. Would GC 0W-30 be a good oil for this engine? It's SL rated, not SM - but it's a thick (12.2 cSt @ 100 C) 30 weight, and seems to hold up well in other engines that are considered to...
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    GMC Pickup Alterator Problem

    Well, I'm not doing so well on this. I bought an Autozone Gold Duralast alternator(advertised as being rebuilt by Remy). I reused my NAPA belt, because it only had 23,000 miles on it and looked fine. Everything seemed OK at start up and during a short test drive. But within about 30 miles, I...
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    GMC Pickup Alterator Problem

    My 2003 Sierra 4.3L engine pickup's original alternator started making noise (high pitched squeaking) at around 60,000 mi. Replaced it with a NAPA rebuilt unit. Now, with only about 23,000 miles on the NAPA alternator, it has started making the same screeching noise. Does anyone know what...
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    GM 4.3 L 6 cyl - Noisy Lifters?

    To: muffinstew Do you happen to know which side of the engine the balance shaft is located? My "lifter" noise seems to be confined to the passenger side of my 4.3L 6 cylinder. Nothing much from the driver side. Thanks pmt
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    GM 4.3 L 6 cyl - Noisy Lifters?

    My 4.3L lifter noise is there when started cold and doesn't change much as it warms up. I had an 85 Monte Carlo with a 4.3L (flat bottom lifters, not rollers) and when I stopped driving it at 249,000 miles due to rusted out body the lifters were still quiet. It seems like the 4.3L engines have...
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    GM 4.3 L 6 cyl - Noisy Lifters?

    I bought my 2003 GMC 1/2 ton pickup new. 80 - 90% of miles are on the highway. OCI has been 5000 mi, using synthetics (M1 5W-30, GC 0W-30, Havoline Synth 5W-30, and PP 5W-30). Total miles on truck are about 81,000. Not sure when I first started to notice the lifter noise - maybe the last year or...
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    2004 Lexus ES330 - Valve Adjustments?

    My son recently bought a 2004 Lexus ES330. Has about 50,000 mi on it. He has the original owner's manual, but not a service manual. In the owner's manual it states that the V6 engine has solid lifters, but nowhere in it could we find anything about how often the valve clearance should be checked...
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    Any Radiators Made in the USA?

    I'm still looking for a non-made-in-China radiator for my T-Bird. As Chris142 states above, Valero is evidently a Canadian company, but the Radiator Barn replied that they could not assure me that all of their radiators were made in Canada. But I've run onto another Canadian aftermarket radiator...
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    Any Radiators Made in the USA?

    Thanks for all the input so far. Yes - the radiator is aluminum with plastic end tanks. The car is getting up in miles where those plastic end tanks start to crack - about 100,000 mi. I've had plenty of experience with such failures on cars in my family and on cars owned by friends. (I wish it...
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    Any Radiators Made in the USA?

    I'm searching for a quality replacement radiator for my 96 T-Bird. I'd prefer a name brand radiator made in the USA. But based on my experience so far, this is not as easy as it might seem. I wanted a Modine radiator, but learned that Modine sold its replacement radiator business to an outfit...
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    Stored Vehicle - Start Monthly or Let Sit?

    In the local cities newspaper, a weekly car maintainance column guy stated in answer to one of this week's questions, that he starts his stored vehicles once a month for a half hour (outside his garage) to warm the various lubricants and run the A/C system. I know that starting engines in...
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    New oils get better....but cold specs get worse?!?

    Originally Posted By: addyguy I'm pretty sure that Pennzoil Platinum PDS has a lot of typo's. Can Johnny or anyone else with some contacts inside Pennzoil verify that the PP 5W-30 5150 cP number is @ -30 C, instead of the -35 C listed on their spec sheet? Thanks.
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    New oils get better....but cold specs get worse?!?

    addyguy - Thanks for bringing this topic up again. It has also bothered me. Many of the oils that have raised their cP numbers at -30 C (-22 F) are fully synthetic 5W-30 oils. These oils are supposed to be thin at cold temperatures! They are supposed to be much better at cold cranking than dino...
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    Just how badly do we need 0wXX and 5wXX?

    It's not just oil flow that is a problem as you try to start engines below 0 F. You must crank the engine fast enough for it to start. As far as in the old days, when I was a kid in the 1950s, most people in Iowa used SAE 10 weight oil in their engines in the winter, and it worked well. Of...
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    GMC Fuel Pressure Regulator

    Oops - I confused it with my 96 T-Bird 4.6L. It is, of course, a 4.3L Chevy V-6 engine. The fuel filter was replaced at about 50,000 miles - long before the present long crank problem appeared. Thanks.
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    GMC Fuel Pressure Regulator

    My 2003 GMC Sierra 4.6L V-6 engine (65,000 mi) has recently started to show symptoms (must crank warm engine several seconds to start) of a failing fuel pressure regulator. Failing fuel pressure regulators at low miles (sometimes under 30,000) has been a problem on GM engines for many years...
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    C-P syn blends - the specs have changed!

    I bumped this one up because I (like addyguy) have been using some of these C-P oils for their very low cP @ -30 C numbers. I checked the Phillips 66, Conoco, Kendall, and Motorcraft current websites. The only one that has been updated lately was the Kendall (06/07). I suspect that the other...
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