4.7 wont start
#1
4.7 wont start
Ok I got a1999 Jeep grand Cherokee.with a 4.7. I'm hoping u guys can help me cause there isn't alot of ppl on the Jeep section here on dodgeforum.
I know the 3rd gens use the same motor so I could use some help.
The truck cranks and attwmps the fire but wont start. Ialready checked coolant and oil for signs of a blown head gasket and all looks good. What should I try next????
Thx in advance matt
I know the 3rd gens use the same motor so I could use some help.
The truck cranks and attwmps the fire but wont start. Ialready checked coolant and oil for signs of a blown head gasket and all looks good. What should I try next????
Thx in advance matt
#3
#5
#6
nope wont fire. i havent noticed any mechanical problems yet. like i said i just bought it not running so idk what happened when it died. do you know how to check the cam timing on the 4.7s??? i have no clue with the single overhead cams on a v8. i can a 4 bangor but dunno how to check this one.
thx matt
thx matt
#7
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#8
fuel, fire, and timing. start there. break out the chilton/haynes for some help/guidance.
trying to diagnose online is like working in the dark, gotta see/touch/test it for us to be any real help. all we can give are suggestions like those already mentioned.
for me, I start with fuel. from the tank to the injector and back. pressures, signals, obstructions...
spark, signals, shorts...
and last but not least, timing signals for everything. and without a scan-tool, it will be a chore chasing down signals.
good luck.
But this is the part that really worries me... did I read/understand that correctly? you bought it not running? and don't be to sure that all the 4.7's are the same. I know of 2 versions used in the 3rd Gen Rams.
trying to diagnose online is like working in the dark, gotta see/touch/test it for us to be any real help. all we can give are suggestions like those already mentioned.
for me, I start with fuel. from the tank to the injector and back. pressures, signals, obstructions...
spark, signals, shorts...
and last but not least, timing signals for everything. and without a scan-tool, it will be a chore chasing down signals.
good luck.
But this is the part that really worries me... did I read/understand that correctly? you bought it not running? and don't be to sure that all the 4.7's are the same. I know of 2 versions used in the 3rd Gen Rams.
Last edited by slimvela; 07-19-2011 at 04:09 PM.
#9