Question about GMC Yukon XL
While driving the engine cut off and I was able to get it to restart but then it died again. I checked all fuses and even put in a new fuel pump relay and fuel filter. The pump is working and delivers about 50-55 psi to the fuel rails. It sat over night and when I tried to start it if fired right up but then shortly died. This issue has also made the battery die. Any suggestions?
Crankshaft postion sensor
see the cam sensor tells the crank sensor that the piston in cylinder 1 is all the way up and to fire the fuel and spark then the crank sensor fires the fuel and spark
Posted on Jan 14, 2013
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Posted on Jan 02, 2017
SOURCE: engine turns but won't start
DATE: January, 2007
MODEL: 2002-07 Lancer 2.0L
HARD TO START ENGINE DTC P0340 (and P0335)
The engine may be hard or impossible to start and MFI DTC P0335 and possibly P0340 may be stored due to abnormal wear to the camshaft position sensor support. Oil grooves have been added to the camshaft position sensor support to improve lubrication
Posted on Nov 04, 2008
SOURCE: 1999 Yukon cold start problems.
1999 Yukon Start Issue - I have replaced the octopuse, battery, fuel filter, fuel pump, still having problems starting in cold weather, sometimes after a heavy rain.
Posted on Dec 08, 2008
SOURCE: will start then dies
On the regals they have a ceramic resistor on the passanger side under the fender. It heats up and over time it tends to brake and the wire inside tends to rust away. The fuel pumps run in 2 different speeds. Had the same problem. Dealer only part yet the car would run and you would think it was the fuel pump. Turn the key it kicks on then start and dies out. Ceramic on the pass side would need replaced. It is white about 2-3 inches long or so held on with 2 bolts i do believe. Ill find a bulliten i found online to help me diagnos the problem. :) hopefully this helps someone out instead of spendin $$$ that ya cant afford with the recession eh?
Posted on Apr 01, 2009
SOURCE: 2000 Jeep Grand cherokee Laredo
sounds alot the the pcm it controls the fuel pump and ign system but the anti theft would keep it from starting because the key has a transponder in it programmed for that vehicle and that would kill all ign if triggered
Posted on Sep 27, 2009
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