I've run a '00 Mustang GT 4.6 convertible since driving it off of the showroom floor with 33 miles. A few years back I discovered the hard way that not all transmission service joints can be trusted. During a rather routine pan drop, filter swap and fluid top the idiots not only didn't use Marcon V, they didn't even use a synthetic. Needless to say within a few months I started having issues but it was already too late. I figured out what had happened when I returned to the shop 6 months later and the price for the same service was 2x the original price.
I decided to rebuild the original 4R70W and drop it back in at some point (or sell it... maybe). To carry me over I picked up another 4R70W from an '01 Crown Vic. I did the swap with only a few issues that went beyond the normal stuff (top starter bolt, top trans bolts, header bolts, top bracket reinstall, LOL). These issues were ...
Nothing. At this point I am thinking starter solenoid, so I did some testing.
I checked the starter and starter solenoid using a multi meter. I saw 12v + change to the starter but nothing, absolutely nothing, to the solenoid at start. I tried adjusting the shift linkage / shift / combination of two until exhausted. The car simply is not sending juice to the solenoid at start. Period.
I do not believe the problem to be either the starter or starter solenoid.
I pulled and checked fuses. All good. At the turn of the key. I hear a click from within the engine compartment.I have proved the click is not coming from the starter so assume it to be the relay. That said, I am at a loss to diagnose the problem.
I have read that the pin out on a Crown Vic trans and GT were significantly different in the mid-late '90s but was assured these issues did not exist with an '01 CV to '00 GT swap. Both are running the 4R70W.
Up until it stopped starting, it ran great with the CV transmission. It shifted smoothly and performed nicely on the highway. Absolutely no complaints other than maybe a slight loss in kick when I punched it down at speed.
What am I missing?
I am not knowledgeable about transmissions. Just lucky with a wrench.
Seriously. HELP!
Dave
I decided to rebuild the original 4R70W and drop it back in at some point (or sell it... maybe). To carry me over I picked up another 4R70W from an '01 Crown Vic. I did the swap with only a few issues that went beyond the normal stuff (top starter bolt, top trans bolts, header bolts, top bracket reinstall, LOL). These issues were ...
- Swapped out the CV shift lever and replaced with the GT shift lever
- Swapped out a two pronged CV sensor that did not mate up with the harness for the equivalent GT sensor
- Removed the speed sensor from the tail of the CV trans and replaced it with the plastic cover from the GT trans
- Swapped the GT shift sensor as the CV shift lever was a few mics larger diameter, a few millimeters longer, and extensions on the CV shift sensor meant no room to fit on the GT
- Once back to the garage after an initial test run, it refused to start. I adjusted the shift cable and that appeared to solve the problem.
- The next morning my wife drove the car and it let her sit by refusing to start for the return home. This time, a shift console jiggle between P and R was all it took to get it going.
- Once home, I re-adjusted the shift cable using N as the reference point (just like before). Good to go. It started right up.
- Next day, the GT starts up but again leaves me sitting, this time in front of a Lowes. About 3 hours later (just as my neighbor with tow was a half mile away) it starts. I returned to the garage.
- That was the last time it started. It will not start. Period.
Nothing. At this point I am thinking starter solenoid, so I did some testing.
I checked the starter and starter solenoid using a multi meter. I saw 12v + change to the starter but nothing, absolutely nothing, to the solenoid at start. I tried adjusting the shift linkage / shift / combination of two until exhausted. The car simply is not sending juice to the solenoid at start. Period.
I do not believe the problem to be either the starter or starter solenoid.
I pulled and checked fuses. All good. At the turn of the key. I hear a click from within the engine compartment.I have proved the click is not coming from the starter so assume it to be the relay. That said, I am at a loss to diagnose the problem.
I have read that the pin out on a Crown Vic trans and GT were significantly different in the mid-late '90s but was assured these issues did not exist with an '01 CV to '00 GT swap. Both are running the 4R70W.
Up until it stopped starting, it ran great with the CV transmission. It shifted smoothly and performed nicely on the highway. Absolutely no complaints other than maybe a slight loss in kick when I punched it down at speed.
What am I missing?
I am not knowledgeable about transmissions. Just lucky with a wrench.
Seriously. HELP!
Dave