zoomzoom7
09-03-2004, 10:22 AM
Okay I just bought a 1990 Galant LS SOHC for $1500 two days ago... 180K miles.... appearently a new head gasket.... New tranny 1000 miles ago ect.......
It keeps cutting off.... Found out to be the ECU, guy here in DFW fixes them for $25 so Ill go get that done sometime soon if I keep the car...
Some lifter tapping made it sound like a diesel.... ONLY accellerating... if you just cruised it didnt, only with load it was loud!
and it didnt idle worth a flip... I cleaned the little adjuster motor and greased it up.... Then if you turn the key to the on position, it couldnt make up its mind how far in or out it wanted to be....
THE STORY
I just cleaned everything up... replaced plug wires... and tried to fix the idle problem...
Even with that plunger off the motor, and the screw all the way off, it would idle at 1500 and then 800 in drive and shake the car really bad... reverse never shook,smooooth as silk....
Then I went around my block, and it lost power... still ran, just no power... I killed the a/c, and then got the power back fine, then lost power and I tried to turn around and it stalled..... Started it back up with a HUGE struggle... had to floor it... and then it would have any power at all and stall out if I go into gear.... Now it doesnt even start.... Sounds like there isnt any compression... but once it cooled down(was kinda hot 3/4 of the gauge) it would have a chug to it... dunno where to start... It does have spark....
Questions
1. Could the lifter have an effect like this? If I replace only the bad ones will the cam get ate up?
2. Could the ECU have totally died?
3. How long do these SOHC 4g63's last?
4. What was wrong with the idle? I couldnt find a vacume leak(1500 on its own with throttle body closed isnt right... Ill replace the intake gasket and search for something else that could have cause it.... ... I cleaned the throttle body also... The little black vacume canistor that vents to the tank, and then to the a/c idle silonoid... the spot that says CARB is into the open, no hose to hook up in sight...
Well, if you can answer me those questions I would really appreciate it, it would help me on my way... I'll update with any new information or any results...
Thanks, Andrew
It keeps cutting off.... Found out to be the ECU, guy here in DFW fixes them for $25 so Ill go get that done sometime soon if I keep the car...
Some lifter tapping made it sound like a diesel.... ONLY accellerating... if you just cruised it didnt, only with load it was loud!
and it didnt idle worth a flip... I cleaned the little adjuster motor and greased it up.... Then if you turn the key to the on position, it couldnt make up its mind how far in or out it wanted to be....
THE STORY
I just cleaned everything up... replaced plug wires... and tried to fix the idle problem...
Even with that plunger off the motor, and the screw all the way off, it would idle at 1500 and then 800 in drive and shake the car really bad... reverse never shook,smooooth as silk....
Then I went around my block, and it lost power... still ran, just no power... I killed the a/c, and then got the power back fine, then lost power and I tried to turn around and it stalled..... Started it back up with a HUGE struggle... had to floor it... and then it would have any power at all and stall out if I go into gear.... Now it doesnt even start.... Sounds like there isnt any compression... but once it cooled down(was kinda hot 3/4 of the gauge) it would have a chug to it... dunno where to start... It does have spark....
Questions
1. Could the lifter have an effect like this? If I replace only the bad ones will the cam get ate up?
2. Could the ECU have totally died?
3. How long do these SOHC 4g63's last?
4. What was wrong with the idle? I couldnt find a vacume leak(1500 on its own with throttle body closed isnt right... Ill replace the intake gasket and search for something else that could have cause it.... ... I cleaned the throttle body also... The little black vacume canistor that vents to the tank, and then to the a/c idle silonoid... the spot that says CARB is into the open, no hose to hook up in sight...
Well, if you can answer me those questions I would really appreciate it, it would help me on my way... I'll update with any new information or any results...
Thanks, Andrew