everytime I start the truck for the first time, the transmission will be in first gear til 35-40 MPH, and you can hear the RPMs are real high. After driving for a while, it shifts somewhat normally. from complete stop to go, it will shift, then it sounds like it whines or whirls real high for a second or two after it already shifted, like it has to pop out of gear. The fluids are fine. is this normal?
2006-06-21 01:22:15 · 4 answers · asked by dallascd23 1 in Cars & Transportation ➔ Maintenance & Repairs
Close but no cigar- The 90 dodge ram could have had either a 3-speed tf8 727 automatic or the a518 o/d .In either case though nither trans uses a modulator so naturally it can't be the modulator.. Also with this trans design you cannot have a shift without the application of the band(with GM style trans you can because GM uses the band for second gear braking) dodge and ford use theyre bands for shifting and engine braking.. the problem you are describing is typical of a governor trying to stick. the fluid in the trans is a little heavier cold than hot and will create higher line pressures at the governor valve and requires more engine RPM to componsate for throttle valve pressure before these 2 pressures level out and cause a shift.The whinning noise can be several diffrent things, 1 could be a leaking filter gasket and fluid is being sucked around this opening and causing the noise. another cause could be the convertor whinning, normally this noise increases with engine RPM and will occure in reverse also.But by your description it sounds as if the planetary gear set is whinning from lack of lube.Not a lot you can do about that ,lack of lube is a result of worn bushings, valve bores and seals.I suggest that you change fluid and filter and top off (substitute 1 quart of fluid) with a quart of LUCAS TRANS ADDITIVE, this additive will aid in the governor working properly.Hope this helps...
2006-06-21 02:39:41 · answer #1 · answered by thinkinoutloud 2 · 0⤊ 1⤋
Fluid type has nothing to do with it on this transmission. You are probably running with a 727. It's a very basic, very durable transmission. It sounds like the transmission is low on fluid and the whine you are hearing is coming from the torque converter. The shifting you describe sounds like the shift modulator is out of position. First, check the fluid level and the shift modulator....I think it's mechanical....it will be on the throttle linkage. Do a very thorough visual on the entire transmission. If you tinker with it, see if you fix the problem. If you can't get it fixed there, the next step is to change the fluid and filter. Past that, your cheapest alternative is to go to a junk yard and get another. If you no a transmission shop that won't take you to the bank, have them rebuild it. Any monkey with basic AT skills can rebuild a 727. The kit costs around 100 bucks. Hopefully nothing went really wrong with it. Could be a shift band. If so, you can just shift it manually and the sound will most likely go away. You can run on a bad band for years.
2006-06-21 01:46:54 · answer #2 · answered by jeff s 5 · 0⤊ 0⤋
Dodge Power Transmission
2016-12-29 19:12:09 · answer #3 · answered by ? 3 · 0⤊ 0⤋
Are you using the right tranny fluid the one for Dodge has a III on it, if not your tranny will slip.
2006-06-21 01:28:24 · answer #4 · answered by Anonymous · 0⤊ 0⤋