Questions on a 2000 Ram 1500 4X4

From : socalstaff

Q: this comment on aluminum heads being a problem on automotive engines is pure bs. please explain then the problems that ford escorts had with the heads the gm 2.0 has with its aluminum head and the mopar 2.2/2.5 had with its head. all had aluminum and all have head gasket faliures as part of their history. all decent engines but all blew head gaskets because of the aluminum vs cast iron expansion rates and the effect on a head gasket. there is nothin wrong with properly designed aluminum head while true its not the head iteself which its the problem unless ya count the escorts cracking irreperably the mopars cracking around the valve seats and the chevies just cracking in general as they are a lot lighter easy to repair if damaged rubbish. cost enters as a factor and often it cost more to repair than to replace. the escorts heads were so rare in salvage yards that new heads were often the answer. and they cool better to and have less hot spots becuae they conduct heat much better than cast iron too. thats a terrific thing if you burn gasoline. but on a diesel its a stupid idea. diesels use heat to burn the fuel and coincidentally all engines use the heat of combustion to expand gases and push a piston down. so in an engine used to haul a big truck around no need for weight savings usually for work no need for high performance and fueld by diesel/compression ignition why would it be a good idea to get rid of as much heat as possible through the head youll only lose more heat on the next cycle when you want to use it to power the truck. there are the perfect head and cost is the only reason there are not more wide spread. more rubbish. metal casting in general is about the same cost depending on materials costs which fluctuate. further if aluminum so expensive why did it see widespread use in escorts cavaliers and damn near anything chrysler built in the 80s imports have been using aluminun head for over 35 years now too. yet they are some of the cheapest to buy further making your comment on expense look stupid. also isuzu has been make light and medium duty diesel for a very long time and make some of the best light duty diesel out there period btw a suv is considered light duty isuzu is about the only thing the duramax has going for it considering gms reputation in the small diesel market. the alison tranny they put behind it is the best out there right now in its class. maybe it is maybe it isnt. the cummins is not a bad engine but is not as smooth as the dmax in operation more rubbish. the inline six design is well known as the smoothest running of the two designs. and while it will rev beyong 2200 rpm it is not happy because you can feel it and above 2500 rpm it get even more unhappy more hogwash. i can stand on my accelerator and the engine just does its thing no unhappiness no odd vibration no complaints nothing. and yeah ill do that in neutral as well with the same results. where the dmax pulls very smoothly to redline. as does the cummins the cummins also weighs 1300 lbs funny mine weights 1100lbs and the logic of a 1300lb motor is a 6000lb truck escapes me weight of the block is inherent in durability and heat retention both characteristics of a good diesel. besides i can out pull any ford or chevy in a snow situtation all esle being equal. in a 20000lb comercail truck fine but not a p/u. . dodge has had a lot of front axle problems in 4x4 cummins trucks because of the weight and quietly upgrade front axle in 03 to control the problem some. actually thats false as well. ive see no evidence of front axle problems. the quiet upgrade happened in 2000 but i fail to see where a 4800b axle rating is that much worse than the 5200lb rating when the engine only weights 1100lbs. jury is still out on this fix. hogwash also dodge has had a lot of trouble with automatics behind cummins and the tranny has been redesigned in 05 but jury is still out on that too. more rubbish. the ats behind the cummins perform exactly as advertised if they are used within the specifications that they are advertised with. further the trans was not redesigned in 05 it simply gained a few clutch plates in 02. cummins does have a little better low speed responce below 2000 rpm very true but feels unhappy much past that. again rubbish. and in chysler infinate lack of wisdom when they came out with new front axle in the hd 4x4 in 03 they removeded the front axle disconnect in it and are using a bastard hub design that is not user freindly for service nor supports the installation of lockout hubs to free wheel front end in 2wd. this was true way back in 94. where have you been so in 2wd you are always turning the front axle and drive shaft and it wil cost you at least about 1 mpg on highway and likely more when it is cold. more bullshit. the difference i see in mpg betw

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From : tom lawrence

what kind of symptoms come with a bad iac idling problems... vehicle wont idle after starting or dies when coming to a stop. .