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  1. Mechrick

    Engine stutters at about 3K RPM

    If your engine is equipped with EGR, try unplugging the vacuum line and driving it. Sometimes the spring in the valve gets weak with age and allows the valve to open too far. Excessive exhaust back pressure can do the same thing.
  2. Mechrick

    Replay buzzing from passenger side causing the bronco to buck and sometimes die

    Weak ground to the PCM. The PCM grounds at the negative battery cable through a black connector.
  3. Mechrick

    Replay buzzing from passenger side causing the bronco to buck and sometimes die

    The EEC power relay and fuel pump relay are up there on the older ones. Usually when a relay starts occilating like that it's a weak ground...
  4. Mechrick

    Installing Fuel Injection in old carburetted Fords

    Dorman makes them. Most parts stores don't stock them, but they can be ordered.
  5. Mechrick

    Installing Fuel Injection in old carburetted Fords

    There are a few situations that crop up when installing a high pressure fuel system in vehicles that were originally carburetted from the factory. I recently did an EFI installation on my BII which can be seen here...
  6. Mechrick

    86 B2 refuses to run right at 20k miles

    1-2-4 are on one driver and 3-5-6 on the other, so not separated by bank. I would test for a drippy injector. You would have to lift the upper intake out of the way, and pull the injectors out of the lower intake still connected to the fuel rail (disconnect them electrically). Place some...
  7. Mechrick

    86 B2 refuses to run right at 20k miles

    Ignore items that are common to all cylinders. It sounds like the left bank is down on power compared to the right. Is there separate converters for left/right banks? Maybe the left is restricted. 2.9s can crack heads, does it use coolant? I believe the left and right banks are on different ECM...
  8. Mechrick

    2.3L ('83-'97) Just feeling froggy Wana boost?

    You won't be happy with it. The thing will ping if the wind blows. I did this experiment with 9:1 flat tops (Speed Pros). The factory pistons are fragile. Running 6 psi with premium fuel and aftermarket injection I couldn't keep it from pinging. With the 2.3L it's always best to drive...
  9. Mechrick

    2.3L ('83-'97) Idles high, runs decent, sometimes stalls when starting from a dead stop, when it stalls refuses to start by cranking with the key

    Check the harness that runs from the crankshaft sensor up the left side of the engine. I've seen these get oil-soaked and fall apart. In general, get it running and wiggle harnesses to see if you can get it to stall. It sounds like the rock of the engine starting out is disturbing something...
  10. Mechrick

    Bronco V8 fuel injection swap

    Lawd, no. Then I would have to actually spend money... I'm not against the throttle body setups that are out there, but in this case I had all the components lying around except the intake. Quick trip to the pick-a-part solved that. -And, no throttle body setup will be as good as port...
  11. Mechrick

    Bronco V8 fuel injection swap

    I had two full size Broncos, one with a 5.0/E4OD/31x10.50-15 and the other with a carbed 300 and ZF 5 speed and 33x12.50-15's. Both averaged 16.5 highway. Explorer 5.0's are rated 18 mpg highway. If I can't get 17 or better highway I'll go back to a fullsize.
  12. Mechrick

    2016 Ford F-150 P0430

    Cat efficiency codes can be a pain. I scanned the chart for that code, it has you checking fuel pressure, for exhaust leaks, exhaust back pressure, etc. Never mentions sensors except for checking the fuel rail pressure sensor for bias. Has it started using oil? From the verbiage of the...
  13. Mechrick

    Bronco V8 fuel injection swap

    Thank you, I enjoy sharing. One of the reasons I like HEI is you don't need all this: The distributor I used came from the long block (1992 Bronco 5.0), which used an external module. Since I had all the parts to complete wiring this way (my '88 460 F250 uses the same module and I had a...
  14. Mechrick

    Bronco V8 fuel injection swap

    Hi all. Due to the price of fuel, I took the time to covert my BII to fuel injection over the past week. Thought I'd share the process (although there are many routes to accomplish this). I'll miss the simplicity of the HEI and four-barrel, but I'm hoping for a 3-4 MPG bump over the 14 MPG I've...
  15. Mechrick

    4.10 gears on limited slip 7.5 differential

    The other option is a notched pin. The notch is so the pin can be installed before the ring gear. You rotate the pin left and right so the axles can be pushed in and the C clips installed, then turn the pin 90 degrees and install the retaining bolt. There is a running debate on which is...
  16. Mechrick

    post swap tuning help

    Your PCM uses SCP communication. It's routed from pins 10 and 2 of the DLC to pins 15 and 16 of the PCM. I doubt there is an issue with these circuits if you can pull fault codes and data from the PCM. You'll also have ISO9141 on pin 7 of the DLC. This is a scan tool only protocol to most of...
  17. Mechrick

    Rick's 5.0/C6 swap 1985 BII

    Went from this: To This: I'm running a PMGR starter, so I figured I could ditch the fender-mounted solenoid. I was partially correct. I moved the wires from the battery terminal on the solenoid to the positive battery post, then ran the start wire from the ignition switch directly to the...
  18. Mechrick

    (Yet another!) M5OD-R2 swap

    One major problem I ran into is flywheel imbalance. I replaced the clutch and flywheel on my 460/ZF F250 two months ago. Ordered a Luk flywheel (along with the clutch) from a very popular online parts distributor. On start up, the thing blurred my eyeballs. I double-checked the application...
  19. Mechrick

    (Yet another!) M5OD-R2 swap

    I've got 3 degree bushings in it now (front springs are shimmed). I would like to run 33's at some point, so pivot drops and front springs will be needed. If I ever decide on 35's I'll either run a Dana 44 ttb with a Dana 50 center section or a straight axle...
  20. Mechrick

    (Yet another!) M5OD-R2 swap

    The AN -3 line worked great. More surprising is the clutch bled out in 30 minutes. Sometimes the integral slaves can be a chore to bleed. Shifter: I used an old pry bar for bar stock. Not the best choice, the carbon content was somewhere between spring steel and tool steel. I annealed and...

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