Reverse Lockout Solonoid-98 Coupr
08-17-2015, 01:59 PM
#1
Melting Slicks
Thread Starter
Reverse Lockout Solonoid-98 Coupr
Having difficulty in the 4-5shift in that the shift lever moves too far right and feels like I am attempting to engage reverse which causes some gear gnashing. The 5-6 and 6-5 shifts are noiseless and smooth. Assuming the solenoid is faulty (what else could it be)? Will it throw a code? Checked for codes and there are none. Appreciate your help and thanks.
Joe
Joe
08-17-2015, 03:34 PM
#2
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
Joe
There is a reverse slot "GATE" that engages when car has forward speed and is SUPPOSE to BLOCK the shifter from easily entering that reverse gate.
When the gate is engaged or it FAILS engaged,, it can be over ridden by forcing the stick over to the right. If I remember correctly, its overriding force is something like 25 ft/lbs.
You can test it pretty easily. Get some forward speed (approx. 20/25 mph.) Go to the Neutral Gate and then press the shifter over to the REVERSE GATE. To get into that REVERSE GATE should take a good deal of effort!!!!!!
You can ENTER the reverse gate with out any damage BUT,,, DO NOT shift the sticK forward to engage reverse gear.
If you EASILY enter that reverse gate without having to FORCE it through the blocking solenoid,, the solenoid or the solenoid housing is damaged. The DTC that it will throw if the coil or wiring is damaged is : P-0801 = Reverse Inhibit Solenoid Control Circuit
The mechanical plunger inside the solenoid are KNOWN to STICK and fail. Some members have attempted to clean and exercise them but get the same failure later. If the solenoid is properly connected to the PCM, and is damaged mechanically, it WILL NOT throw a DTC! All the PCM is looking for is the coil resistance/reluctance to be satisfied. It DOES NOT monitor the actual mechanical operation.
The new solenoids are a newer design.
BC
There is a reverse slot "GATE" that engages when car has forward speed and is SUPPOSE to BLOCK the shifter from easily entering that reverse gate.
When the gate is engaged or it FAILS engaged,, it can be over ridden by forcing the stick over to the right. If I remember correctly, its overriding force is something like 25 ft/lbs.
You can test it pretty easily. Get some forward speed (approx. 20/25 mph.) Go to the Neutral Gate and then press the shifter over to the REVERSE GATE. To get into that REVERSE GATE should take a good deal of effort!!!!!!
You can ENTER the reverse gate with out any damage BUT,,, DO NOT shift the sticK forward to engage reverse gear.
If you EASILY enter that reverse gate without having to FORCE it through the blocking solenoid,, the solenoid or the solenoid housing is damaged. The DTC that it will throw if the coil or wiring is damaged is : P-0801 = Reverse Inhibit Solenoid Control Circuit
The mechanical plunger inside the solenoid are KNOWN to STICK and fail. Some members have attempted to clean and exercise them but get the same failure later. If the solenoid is properly connected to the PCM, and is damaged mechanically, it WILL NOT throw a DTC! All the PCM is looking for is the coil resistance/reluctance to be satisfied. It DOES NOT monitor the actual mechanical operation.
The new solenoids are a newer design.
BC
Last edited by Bill Curlee; 08-17-2015 at 03:37 PM.
08-18-2015, 04:43 PM
#3
Melting Slicks
Thread Starter
Joe
There is a reverse slot "GATE" that engages when car has forward speed and is SUPPOSE to BLOCK the shifter from easily entering that reverse gate.
When the gate is engaged or it FAILS engaged,, it can be over ridden by forcing the stick over to the right. If I remember correctly, its overriding force is something like 25 ft/lbs.
You can test it pretty easily. Get some forward speed (approx. 20/25 mph.) Go to the Neutral Gate and then press the shifter over to the REVERSE GATE. To get into that REVERSE GATE should take a good deal of effort!!!!!!
You can ENTER the reverse gate with out any damage BUT,,, DO NOT shift the sticK forward to engage reverse gear.
If you EASILY enter that reverse gate without having to FORCE it through the blocking solenoid,, the solenoid or the solenoid housing is damaged. The DTC that it will throw if the coil or wiring is damaged is : P-0801 = Reverse Inhibit Solenoid Control Circuit
The mechanical plunger inside the solenoid are KNOWN to STICK and fail. Some members have attempted to clean and exercise them but get the same failure later. If the solenoid is properly connected to the PCM, and is damaged mechanically, it WILL NOT throw a DTC! All the PCM is looking for is the coil resistance/reluctance to be satisfied. It DOES NOT monitor the actual mechanical operation.
The new solenoids are a newer design.
BC
There is a reverse slot "GATE" that engages when car has forward speed and is SUPPOSE to BLOCK the shifter from easily entering that reverse gate.
When the gate is engaged or it FAILS engaged,, it can be over ridden by forcing the stick over to the right. If I remember correctly, its overriding force is something like 25 ft/lbs.
You can test it pretty easily. Get some forward speed (approx. 20/25 mph.) Go to the Neutral Gate and then press the shifter over to the REVERSE GATE. To get into that REVERSE GATE should take a good deal of effort!!!!!!
You can ENTER the reverse gate with out any damage BUT,,, DO NOT shift the sticK forward to engage reverse gear.
If you EASILY enter that reverse gate without having to FORCE it through the blocking solenoid,, the solenoid or the solenoid housing is damaged. The DTC that it will throw if the coil or wiring is damaged is : P-0801 = Reverse Inhibit Solenoid Control Circuit
The mechanical plunger inside the solenoid are KNOWN to STICK and fail. Some members have attempted to clean and exercise them but get the same failure later. If the solenoid is properly connected to the PCM, and is damaged mechanically, it WILL NOT throw a DTC! All the PCM is looking for is the coil resistance/reluctance to be satisfied. It DOES NOT monitor the actual mechanical operation.
The new solenoids are a newer design.
BC
Joe
08-18-2015, 06:31 PM
#4
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Just FYI, on the older C5's ('00 and older I think) the lockout is dis-engaged by the PCM, not engaged once the car is moving like the later models. The easy test is to see if it will easily go into reverse when the key is off.