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There could be a number of possible reasons why your G30 Chevy van is not shifting out of 1st gear. Some potential causes could include:
Faulty shift solenoids: The shift solenoids are responsible for controlling the flow of transmission fluid through the valve body, which in turn affects the shifting of gears. If the solenoids are not functioning properly, it can cause the transmission to get stuck in 1st gear.
Low transmission fluid pressure: If the fluid pressure in the transmission is too low, it can prevent the gears from shifting properly.
Faulty transmission control module: The transmission control module (TCM) is responsible for controlling the shifting of gears in an automatic transmission. If the TCM is faulty or has malfunctioned, it can cause the transmission to get stuck in 1st gear.
Internal transmission issues: There could be internal issues within the transmission itself that are preventing it from shifting out of 1st gear. This could include worn gears or clutches, or other mechanical issues.
It is recommended to take your van to a qualified mechanic or transmission specialist to diagnose the issue and perform any necessary repairs.
hello
u will find a lot of wiring diagrams and circuit diagrams help books and stuff like this at reliable-store
the girl in the chat box can help u instantly... im a frequent buyer there since Im a mechanic so take help from there
prices are different from where you live but the average in good condition under 150,000 miles is about $2700 this is kelly blue book their are other s such as edmunds nada etc Kelley Blue Book
Depends on the type of transmission in the van. Most late model transmissions use electronic shift solenoids to control shift points. If the transmission in this van has a modulator valve, it is located on the passenger side of the van near the middle of the transmission with a vacuum hose attached to it.
The transmission select button varies the shift points , eg; when in 'econo' the trans will shift sooner than when in 'power' mode.
'power' will be to keep the transmission in a higher gear (engine RPMs higher = more power ).
could be your starter or even you key switch.. i would start with having the starter checked.. if that is nto the problem then on to the key switch.. but it could be as simple as a bad battery or loose connection
That wire is input 4S to the powertrain control module. I dont know if having it grounded all the time will affect the powertrain control computer but it doesnt seem to want to hurt the fuel pump circuitry itself from looking at the schematics. I'd try to ground it start it then make sure of course the relay opens when you shut it off then try to drive it to make sure the grounded pin on the PCM doesnt affect the transmission.
The firing order is 1-4-2-5-3-6. The cylinders are, front bank is from drivers side to passenger, 6-5-4 , and 3-2-1 at the firewall. This is for a 2004 Mazda MPV.
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