CruiserDM
Supporting Vendor
I bought this truck back in may of last year, and have been wrenching on it ever since. I've done all of the following work below but just can't seem to get it to run right:
New Water Pump, Thermostat, Radiator, and all coolant hoses
New Distributor + Cap
New Spark Plugs and wires
New Valve Cover Gasket + PCV + Valve Adjustment by local shop
Cleaned Fuel Injectors
New Fuel Pump and Fuel Filter (Replaced Today)
New Alternator + Battery
New PS Pump and steering gear
New Air Intake Hoses + Filter
New O2 Sensors + Catted Downpipes (Old cats were cut off before I bought the truck, along with O2 bungs. Truck has had CEL for these since purchase)
New Intake + Exhaust Manifold Gaskets
Adjusted throttle + Trans cables
Full EGR delete with kit from Lerms Customs
I'm hoping for some advice on where to go from here, the truck idles fine, revs freely in park and in neutral, but has almost no power under load.
I can usually rev through first gear but if I'm going uphill I'll have the throttle pinned to the floor and be stuck at 30mph - 2.3k rpm.
I've noticed sometimes when I go from no throttle to full throttle the truck will stumble for just a second before revving, and I am getting some burble/backfires making me think I'm running a bit rich. Truck idles around 850 rpm.
Any advice on where I should look next? Maybe timing or valve adjustment is off?
I read about the TPS sensor causing issues in this thread: 3FE- Loss of power/mild stumbling/at mid RPM range (Fixed it Thread) Whew. - https://forum.ih8mud.com/threads/3fe-loss-of-power-mild-stumbling-at-mid-rpm-range-fixed-it-thread-whew.943942/
And this guy had almost the exact same issue as me but it was due to a kinked fuel line, but I couldn't find any sign of that:
I haven't performed a smoke test for vacuum leaks, but could vacuum leaks cause such a drastic issue? I can't get this thing over 45-50mph at this point. Any help or lines for me to chase down are greatly appreciated.
New Water Pump, Thermostat, Radiator, and all coolant hoses
New Distributor + Cap
New Spark Plugs and wires
New Valve Cover Gasket + PCV + Valve Adjustment by local shop
Cleaned Fuel Injectors
New Fuel Pump and Fuel Filter (Replaced Today)
New Alternator + Battery
New PS Pump and steering gear
New Air Intake Hoses + Filter
New O2 Sensors + Catted Downpipes (Old cats were cut off before I bought the truck, along with O2 bungs. Truck has had CEL for these since purchase)
New Intake + Exhaust Manifold Gaskets
Adjusted throttle + Trans cables
Full EGR delete with kit from Lerms Customs
I'm hoping for some advice on where to go from here, the truck idles fine, revs freely in park and in neutral, but has almost no power under load.
I can usually rev through first gear but if I'm going uphill I'll have the throttle pinned to the floor and be stuck at 30mph - 2.3k rpm.
I've noticed sometimes when I go from no throttle to full throttle the truck will stumble for just a second before revving, and I am getting some burble/backfires making me think I'm running a bit rich. Truck idles around 850 rpm.
Any advice on where I should look next? Maybe timing or valve adjustment is off?
I read about the TPS sensor causing issues in this thread: 3FE- Loss of power/mild stumbling/at mid RPM range (Fixed it Thread) Whew. - https://forum.ih8mud.com/threads/3fe-loss-of-power-mild-stumbling-at-mid-rpm-range-fixed-it-thread-whew.943942/
And this guy had almost the exact same issue as me but it was due to a kinked fuel line, but I couldn't find any sign of that:
FJ80 3fe new guy with issues
I bought my 80 about a month ago for 6500. I took it out for a drive know there were issues with it but being that it was in decent condition and it had the "bullet proof" 3FE I decided to pull the trigger. On the way home I noticed on hills that it would down shift and fall flat on its face...
forum.ih8mud.com
I haven't performed a smoke test for vacuum leaks, but could vacuum leaks cause such a drastic issue? I can't get this thing over 45-50mph at this point. Any help or lines for me to chase down are greatly appreciated.