Impact before? Torque after?
From : edward l dowdy
Q: this is my boys truck. it has a small v-6 with probably 130k miles drinks oil regularly but he says he keeps up with it. last week he says he is driving it and all of a sudden it starts running rough backfires a few times and that all lasts about 20 seconds or so then smooths out and runs ok. yesterday he drives to work less than a mile and parks it in their garage. after work he starts the truck it runs for about 30 seconds then turned off like someone turned the key. now it turns over but wont start. no codes. he swears there is a half a tank of fuel. im going over on sat to look at it bringing a gas can. ill check for fuel delivery and spark any other suggestions hmmmmm.... reading over this for spelling errors and i detect an ever growing suspicion of timing chain issues original chain. anybody else think this way with so little to go on does this engine have clearance to turn over with a busted chain fmb north mexico drove down to concord to look at the truck. i had him price fuel pumps yesterday so he can have an idea what to expect today $175-$340. i first listened for fuel pump noise when the key was turned on. i didnt hear any but couldnt remember if i ever heard any. then we checked to see if it turned over ok and it did; just wouldnt start. i visually inspected the plug wires and some of them were out of the little u holders and had him try to restart no luck. next pulled the air cleaner and put 1/2 oz of fuel on the butterfly valves. he tried to start it and it didnt start. all the fuel was still sitting on the valves. i let some down and he turned it over and the engine started and ran for a few seconds. hmmmm..... fuel delivery problem. again i asked if there was fuel in the tank. yeah about 1/2 a tank. ok when we gave this truck to him it had a defective guage. it reads full for the first 50 miles or so then drops to empty. we guage when we need to buy fuel by how many miles we have on the trip meter. that has worked well for him and i for 5 years or so. how many miles on this tank about 170 and it should be able to go to 250 or so. i dumped a gallon of fuel into the tank some on the butterfly valve and started the truck. it ran for 15 sec or so and quit. a little more onto the butterfly and it started and ran fine. i dumped another gallon into the tank from my gas can. son drove to the gas pumps then to the parts store for a locking gas cap. thanks for the help guys. fmb north mexico .
Replies:
From : stormin mormon
yep thats what i do. impact wrench to loosen and torque wrench to set em back on. -- christopher a. young you cant shout down a troll. you have to starve them. .. ok... im no mechanic. im no tire guy. i had to have a tire replaced on my 2005 2wd regular cab .
From : stormin mormon
first throw out every valvoline oil you own. drain the truck. replace all above with castrol. my last truck castrol was the only brand that prevented rod knock. also a mechanic i trust very strongly says that valvoline oil doesnt maintain viscosity. hes had a couple cases where the customer comes in with no oil pressure. he replaces the oil with quaker state leaves filter on. and the oil pressure comes back. -- christopher a. young you cant shout down a troll. you have to starve them. .. first i apologize for the length of this post. ill make it brief as possible. i bought a 1999 dodge ram 1500 5.2l 4wd with 99k miles and drove it for about 2 years without problems. i changed the oil regularly with valvoline 10w30 oil. i parked the truck for 1 year without starting it. after this time i checked the fluids started the truck and let it reach operating temperature. all was normal. later after driving 10 minutes 6-7miles the oil pressure dropped to zero. i shut the engine down immediately and checked the oil. i started the truck after several minutes noting normal oil pressure and drove the truck home. i changed the oil and filter same problem. i pulled and cleaned the pan installed a new melling high volume pump verified the pump shaft and cleaned the pickup so that it looked new inside and out with oven cleaner same problem. i installed a mechanical oil pressure gauge to verify the readings. i pulled the pan and checked the pickup height. the pickup was tight and the pump was tight with a gasket. i pulled the valve covers. the smooth black crust on the valvetrain and head concerned me. i cleaned the head thinking the oil was being held under the valve covers and running the pump dry. i had good oil flow to the rockers/pushrods when i closed everything up. same problem. i pulled the pan to check if the pickup had ingested anything and applied teflon tape to the pickup threads as a precaution. i pulled the intake thinking the black sludge was keeping the oil there. no problems. with the intake removed i was able to drive the pump with a primer shaft. oil flow seems to be what i would expect. oil flow seems to be uniform from the head in the lifter valley and draining properly. the pressure starts at 70psicold and drops slowly to 60psiwarm with the high volume pump 60psi & 45psi stock pump. if i drive the truck the pressure drops slowly to zero and stays there. at a 3000rpm+ engine speed no load the oil pressure drops rapidly to zero then stay there. i may be hearing the oil pump cavitate or chatter at zero pressure. i assume it is running out of oil but as near as i can tell there is always oil in the crankcase however its difficult to accurately check a dipstick with the engine running. ive tried running 20w50 oil with no change. crankshaft bearings dont make sense in this case however ill check the endplay tonight as i saw on another post. if crankshaft bearings were at fault why would the pump cavitate/chatter ive put an incredible amount of time into this problem already. i wanna drive my truck again! any suggestions would be appreciated .
From : bryan
john wrote 2003 quadcab 1500 - can anyone tell me which headlight bulb it uses choices are - h4 - h5/9004 - 9005/9006 - 9007 thanks! http//www.sylvania.com/consumerproducts/automotivelighting/lampreplacementguide/ -- ken .
From : john
put it in the freezer overnight then hit it with heat...the housing side that is. -- ------------------------------------------ laszlo almasi ----cool toys formerly carolina watercraft works ----mack daddy trailers ----ice angels argh! ok cant get the bypass tube out of the old water pump to put into the new one. tried heat - no joy. suggestions see picture for reference... http//www.pacifictides.com/waterpump.html help!!! .
From : john kunkel
i just changed my trans fluid and the filter. i planned on adjusting the bands as well but the rear band adjustment screw is not a hex nut shape but a square. anybody has a suggestion where to get a proper socket. i googled a little bit and found some 4 point sockets read square but not in the right size. a hand wrench of 8mm or 5/16 did fit the square but obviously would not allow me to apply the 72 inch-lbs via torque wrench. axel 2000 dodge ram 1500 pickup 2wd 5.9l .
From : edward l dowdy
thanks for the report. simple things can be big problems. who bought the gas to refill your gascan did your son offer to replace the gas ive stopped to help people several times and found em out of gas. got to the point that i buy gas on schedule and also keep a gascan in my vehicle. -- christopher a. young you cant shout down a troll. you have to starve them. .. i dumped a gallon of fuel into the tank some on the butterfly valve and started the truck. it ran for 15 sec or so and quit. a little more onto the butterfly and it started and ran fine. i dumped another gallon into the tank from my gas can. son drove to the gas pumps then to the parts store for a locking gas cap. thanks for the help guys. fmb north mexico .
From : bryan
sounds like its time to change the coolant flush or just replace...about $50 difference in price . i also should have mentioned cap wires and rotor were changed once before 7.5 years ago...63000 miles ago. i guess i should have asked....is it time to replace those too brake fluid trans fluid....all done recently relatively!!. denny wrote if it was mine id put a set of plugs in it and if the wires cap and rotor were still original they would be changed too. id rather work on it when i wanted to instead of when i have to.. coolant should be done on a time basis instead of milage. were more concerded about the corrosion additives than the freezing point. if youre doing it yourself the drain and fill method is ok. the flush is better just cause it gets just about all the old coolant out. it just depends on if you want to do it yourself or pay to have it done. denny .
From : edward l dowdy
i called the guy. he said bring it in monday he would gladly loosen and retighten them. i think for my own edification. ill borrow a friends torque wrench and do it myself. it sure looked to me like they were being way over tightened. like you said. if the nuts dont move with the torque wrench theyre tightened to at least that torque. who knows how far beyond. ed if the specified torque was reached or exceeded using the impact driver using a torque wrench afterward would serve only to verify that the lugs are torqued to *at least* the specified torque. however the specified torque likely has a *range* of values ie 65-70 ft/lb. if the torque wrench didnt turn the lugs theyre overtightened. it sounds like this is what happened to you. aside from making it difficult or impossible to change a flat alongside the road theres the potential to do damage to the wheels nuts lugs and/or rotors. fwiw even when ive specified it as you have ive never found a tire shop that properly torques lug nuts/bolts. the last time i had a tire shop install tires/wheels 69 barracuda i specified they not use an impact driver at all and that they must torque to the 55 ft/lb specification using only a manually-operated torque wrench. they torqued the 7/16 lugs to over 150 ft/lb the limit of my torque wrench! if i can avoid it i no longer let tire shops install tires/wheels. bryan .
From : denny
edward l. dowdy wrote i hate touch pads! i asked the owner of the tire shop to be sure and have the lug nut torqued. he said no problem. they do it by hand. well i have been thinking about this since yesterday when they did it. the guy working on the truck cinches all the lugs with an air impact wrench i had the tires rotated too then goes around and checks the torque with a torque wrench. he didnt just snug it with the impact he tightened it all down. like i said. im no mechanic or tire guy. but this makes no sense to me. i think i should go home and loosen everything and re-torque according to the manual. what do you guys think ed dowdy fithian il if the specified torque was reached or exceeded using the impact driver using a torque wrench afterward would serve only to verify that the lugs are torqued to *at least* the specified torque. however the specified torque likely has a *range* of values ie 65-70 ft/lb. if the torque wrench didnt turn the lugs theyre overtightened. it sounds like this is what happened to you. aside from making it difficult or impossible to change a flat alongside the road theres the potential to do damage to the wheels nuts lugs and/or rotors. fwiw even when ive specified it as you have ive never found a tire shop that properly torques lug nuts/bolts. the last time i had a tire shop install tires/wheels 69 barracuda i specified they not use an impact driver at all and that they must torque to the 55 ft/lb specification using only a manually-operated torque wrench. they torqued the 7/16 lugs to over 150 ft/lb the limit of my torque wrench! if i can avoid it i no longer let tire shops install tires/wheels. bryan .
From : edward l dowdy
i hate touch pads! i asked the owner of the tire shop to be sure and have the lug nut torqued. he said no problem. they do it by hand. well i have been thinking about this since yesterday when they did it. the guy working on the truck cinches all the lugs with an air impact wrench i had the tires rotated too then goes around and checks the torque with a torque wrench. he didnt just snug it with the impact he tightened it all down. like i said. im no mechanic or tire guy. but this makes no sense to me. i think i should go home and loosen everything and re-torque according to the manual. what do you guys think yes you should unless the guy was using a torq-stick on the impact. denny .