Tip Sheet Samples
700R4 / 4L60 – TRANSMISSION
If your transmission shifts at too low a R.P.M. at wide open throttle this can be raised by installing lighter governor springs. As a general rule the 1-2 shift should happen at 40 to 45 M.P.H. when the throttle is to the floor. The governor is a speed sensor; if it sticks the transmission won’t shift or takes off in 2nd gear. If this happens in an older transmission, it is most likely caused by debris in the fluid from a part failure. If this happens in a newly rebuilt transmission this could be caused from old debris coming from the fluid cooler. If your transmission doesn’t shift out of first gear look and see if the governor gear is stripped. (You need the information in the advisory tip sheet, because a stock 700R4 should never cost over $880.00 installed in a 2-wheel-drive car or truck. We’ve seen people pay $1800.00 for a 700R4.)
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700R4 / 200-4R Throttle Valve Cable Adjustment Instructions
AODE / 4R70W TRANSMISSION
The third most common problem we see on an AOD-E is the shift lever position sensor. When it goes out the transmission may shift at times, not shift at times or fail to pull at times. It can only be diagnosed with a scan tool. It’s located on the side of the transmission at the shift lever. (This can be diagnosed and replaced for about $125.00 to $150.00, compared to over $1000.00 for a rebuilt transmission.)
A4LD – TRANSMISSION
When an A4LD goes bad it usually takes about $400.00 worth of new hard parts on average. When the transmission is rebuilt never use used hard parts; use only new or rebuilt hard parts. Used hard parts will not hold up in this transmission. Never pull a trailer with an A4LD, it will go bad real quick. (If someone rebuilds your A4LD and reuses any of the hard parts with only slight wear, you’ll be doing the job again in less than a year. This information will save you $$$$.)
C – 6 TRANSMISSION
The modulator works as a throttle position sensor. You must have good vacuum at the transmission, if not it will shift out too hard and high. If you have an adjustable modulator, turn the screw in to make it shift higher at light throttle. Turn the screw out to make it shift lower at light throttle. If you keep losing transmission fluid and can’t find a leak, you may have a bad modulator. Pull the vacuum line off of the modulator, if you see any fluid at all it’s bad. (This can be diagnosed and replaced for around $30.00. As compared to $500.00 up for a rebuilt transmission installed.)
604 / 606 – TRANSMISSION
The transmission computer on this unit is super sensitive, if it detects a problem, it places the transmission in limp mode. When this happens it will only have 2nd gear. When the key is turned off, it goes out of limp mode, until the computer detects the problem again. (You need this advisory tip sheet; your transmission may only need external repair, compared to a rebuild costing up to $2000.00.)
518 / 618 – TRANSMISSION
The 518’s have been in use since 1990. The 618 is the same transmission, but has more clutches and stronger gears, it goes behind a diesel or V-10. This transmission is partly electronic, the newer ones more so. First, second and third don’t shift using solenoids, overdrive and converter lock up work using electronic solenoids. This unit can’t be diagnosed using an electronic scan tool, but the throttle position sensor and speed sensor can. These two sensors control overdrive and torque converter lock up. (The advisory tip sheet goes into detail, helping you determine what kind of a problem you really have.)
Dodge 500 / 518 / 618 High Performance Transmissions !
4L80E - TRANSMISSION
This is a very good transmission, often going 175,000 miles before a rebuild is needed. Usually a pressure-valve and sleeve wears out, causing the transmission to fail. This part must be changed with every rebuild or the transmission will only fail again in short order. If your transmission goes into limp mode it will stop shifting. If this happens for some reason other than a transmission problem, disconnect the battery to take it out of limp mode. (The tip sheet tells what a rebuild should cost on this unit, don’t overpay. You need the information in the advisory tip sheet, if your transmission has less than 100,000 miles it may possibly be repaired without being removed from the truck.)
400 – TRANSMISSION
The 400 transmission has an electronic passing gear solenoid. It works off a switch located just above the gas pedal or at the carburetor. It must be working for the transmission to work correctly. If the passing gear isn’t working the pressure will be too low at heavy throttle, causing an early shift at heavy throttle. This could burn your clutches under certain conditions. The solenoid can stick on, even if the wire is disconnected, causing a high hard shift or no shift. There is an adapter plate available that will make a non-Chevrolet 400 fit a Chevrolet motor. It cost about $50.00 to $60.00 dollars. This transmission has been in use since the mid 1960’s. This means there are plenty of used hard parts available at low prices. (The tip sheet tells all a non-transmission mechanic needs to know about the 400 transmission.)
350 – TRANSMISSION
If you have a sudden large loss of fluid on a 350, look to see if the governor cap has come off. This can happen when someone left the safety clip off of the governor cap. Never use a transmission additive that says it will stop leaks. This will turn your seals to mush over a period of time. (You need the pricing information in the tip sheet, without the information you may over-pay. We only charge $289.00 for a carryout 350 transmission.)
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