cylinder shut dow
#1
cylinder shut dow
i have 1999 durango i have several cylinders that shut down but they only do it when in trying to maintail a speed tipping the excelerator. I can idle no miss, hammer it to the floor no miss, just when im trying to hold a speed . Any ideas i tried the tps no luck spark plugs it started just after i changed the wire's cap and rotor could i have got bad parts ?
#2
#3
Did you check the voltage at the tps=it should be about .06 volts and go to about 3.38 volts smoothly=you can check it with the key on with a multimeter and back probe the first wire and the middle wire I believe, also is there any engine lights on? Make sure the spark are not arcing together. pull the plugs and see which look contaminated if they all do you might need a new coil double check their gap too-also check alternator output=if your runnin on 13.4 and below=truck won't run for crud...If nothin else compression the cylinders make sure somethin didn't break.
Last edited by DragonOfMadness; 03-14-2009 at 12:05 AM.
#5
i have 1999 durango i have several cylinders that shut down but they only do it when in trying to maintail a speed tipping the excelerator. I can idle no miss, hammer it to the floor no miss, just when im trying to hold a speed . Any ideas i tried the tps no luck spark plugs it started just after i changed the wire's cap and rotor could i have got bad parts ?
As Indy directed... My truck did that once, but it only was when the throttle was burried it would choke itself out and backfire like a chevy come to find out i went with cheapo wires that arched to the block only visable at night with the hood open and a little on the gas. I would say take your cap/rotor off (since you just replaced) and take a look at it, see if there is any signs of mis-alignment/rubbing then take a look at night and have someone gas to try to reproduce the rpm level of problem. If nothing is noticed replace your coil...
#6
One other thing-when you say maintain speed you mean while driving not idle rpm?...If it's a driving problem how does the truck transmission shift?---It could be the torque converter not unlocking properly when you decelerate-then when you hit the gas the engine has to work against the torque converter and can't build up power= more info on exactly when this problem happens.
#7
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#9
Another tool that might help is this chip that plugs into your obd-2 port below the steering column=it's a real time data logger if you can't find the problem and you work on other peeps cars too= it's worth the cost= about 130 bucks if you shop around.
http://www.davisnet.com/drive/products/carchip.asp
Good luck and post what you found to be the trouble...
Yeah,I have one of these logger chips and it found problems in alot of different vehicles quick.
http://www.davisnet.com/drive/products/carchip.asp
Good luck and post what you found to be the trouble...
Yeah,I have one of these logger chips and it found problems in alot of different vehicles quick.