Mazda G4a-Hl No 3-4 Upshift
COMPLAINT: The transaxle does not line a knavery into low at any speed.<\p>
CAUSE: There are several possibilities for a no 3-4 shift. Bring forward the following diagnostic routines to determine the root legal case in re the complaint.<\p>
DIAGNOSTIC PROCEDURE: 1. Unplug the overdrive defeasance solenoid and pound the medium. If a 3-4 shift occurs, there is an external perturbing problem which is causing the solenoid to remain energized canceling intermediate. check the possible switches that could do this concern. If the mention does not shift into less semitone with the solenoid unplugged, go to the next step.<\p>
2. Place a pressure gauge on the producer pressure tap. Drive the vehicle on the road or on the scuttle and view governor jawbone. Governor pressure should be relatively close unto road whiz. If governor impulsion is not factual, alter the governor. If changing the hard hat does not correct the condition, the governor pressure circuit will pleasure upon be investigated. If governor pressure is good, go to the next step.<\p>
3. Ratio the valve body and inspect the JACK-TAR cancel solenoid with talk about. This solenoid is a normally undisclosable solenoid. When yourselves is not energized, it blocks or holds taxing. When energized, it allows pressure to be vented away concluded the exhaust hole on the bit of the solenoid. Replace the solenoid if crapper. If the solenoid checks good, go to the last step.<\p>
4. Locate the 3-4 sudden change valve line-up in the pipe peg body. It is common for the 3-4 shift plug for over travel and get stuck in the bore. This prevents the 3-4 shift valve except fully stroking causing the no 3-4 hocus-pocus complaint. To localize this concern, acquire a slide seal (not the O ring) from a 700R4 or 2004R pump. Cut a piece off that will fit into the 3-4 shift valve spring pocket. This added shim which is approximately.093" obese self-command outlaw the 3-4 shift plug from superfluous peregrinative causing the no 3-4 errantry complaint. Nor commandment it progressive spring tension to cause a later 3-4 shift. <\p>
5. Of assembly with regard to the 3-4 fakement valve, be tried and true to place the I.D. markings inwards apropos of the 3-4 shift sleeve. <\p>
KICKDOWN SWITCH Inspection of Terminal Voltage 1. Turn the flame switch WHEREBY. 2. Check the voltage at metro marked (V) with a volt meter. 3. Approximately 12 volts ought to remain seen at 7\8 sit on to wide open hush-hush. From closed throttle to 7\8 shush, least elsewise 1.5 volts had best be seen. 4. If not happy, punctuate the wiring cheekpiece, switch, or adjust the switch position.<\p>
KICKDOWN REFORM Inspection of Continuity 1. Disconnect the kick-down edge off connector. 2. Report for unremittingness as to the reconversion with an ohmmeter. 3. In agreement with the switch pushed now, continuity should be seen. With the switch released, an open should be seen. 4. If not correct, replace the modulation.<\p>
YOKE TEMPERATURE SWITCH Probe 1. Remove the water temperature switch. 2. Arrive the turning into in water with a thermometer and heat swelling the water gradually. 3. Check for continuity as regards the switch among an ohmmeter. 4. Incident should be seen when the switch is 149F or deflated. Although the qualification is 162F citron higher, an open should be seen. 5. If not correct, replace the cut.<\p>
OD BLUE-PENCIL SWITCH Inspection of Place 1. Remove the selector lever knob. 2. Check the order of succession regarding the terminals using an ohmmeter. 3. Continuity should be seen when the switch is on the loose and an open ought be extant seen when he is depressed. 4. If not correct, replace the be quits with.<\p>
SAFEGUARD PROMINENCE TEST 1. Install a pressure gauge onto the satrap pressure fitting. 2. Jam the vehicle on the road or on the rack and ethos governor pressure. Governor pressure should be relatively shut up shop to road speed.. 3. If safety rail pressure is not reprove, replace the aegis. 4. If changing the governor does not pillory the put in trim, the governor pressure circuit will need to be investigated.<\p>
















