| From | Message |
DeanC
Dodge Dakota
JOIN HERE
9/22/2009
21:30:58
|
 Subject: 3.9 Problems
IP: Logged
Message:
I've had this vehicle for a couple months, ran OK, but threw a few codes, intermittent miss, miss on cyl 2, seemed to go away after I replace the cap and rotor as part of the tune up I did. I replace cap, rotor, wires, plugs, TPS, cam sensor. Engine started running rough, throwing codes P0302, P0300, P0305, etc. Checked for vacuum leaks, none. Checked compression, it's all over the place:
I checked each cylinder twice.
cylinder 1 = 150 PSI
cylinder 2 = 110 PSI
cylinder 3 = 145 PSI
cylinder 4 = 60 PSI
cylinder 5 = 10 PSI
cylinder 6 = 140 PSI
Two blown head gaskets? Or a blown gasket and a burned valve?
|
hey
Dodge Dakota
JOIN HERE
9/23/2009
08:00:20
| RE: 3.9 Problems
IP: Logged
Message:
you need to wet test
now to determine if its valves, rings, head gasket
how did the plugs look when you took them out?
|
DeanC
Dodge Dakota
JOIN HERE
9/23/2009
18:29:17
| RE: 3.9 Problems
IP: Logged
Message:
The plugs looked fine. The engine doesn't use any oil, or seem to have any blowby.
|
J and J Auto
GenII
9/24/2009
02:32:29
| RE: 3.9 Problems
IP: Logged
Message:
wet test
squirt 4 shots of oil in the low cyls and recheck
if it goes up its rings
if not gasket or valve
I have never seen one that bad wow
I have not checked my stroker motors but the motor
in my 1996 4x4 amazed me every cyl right on 140
not even 1 pound diff perhaps that is why it runs
so well and gets such good gas mileage
Larry
J&J Auto
|
hey
Dodge Dakota
JOIN HERE
9/24/2009
10:42:41
| RE: 3.9 Problems
IP: Logged
Message:
don't forget
the throttle has to be wide open when testing compression
|
Matt
Dodge Dakota
JOIN HERE
10/04/2009
10:52:33
| RE: 3.9 Problems
IP: Logged
Message:
I have a 97 Dodge Dakota, It seems to have downshifting problems, when it downshifts it's momentarily, briefly. It also leaked coolant for a day, I topped off the over flow and it hasn't leaked again, suggestions?
|
| | P 1 |
|
Post a reply to this message:
Username Registration: Optional
All visitors are allowed to post messages
|
