My h2 went into limp mode taking only 2 gears.now it wont start,replaced and serviced the starter with new brushes,but it wont start

Check engine light on , check DTC'S - diagnostic trouble codes ! Check Engine Light On If not familiar with this take it to a ASE certified repair shop or dealer . 3rd limp mode ? Do you have a message in the DIC - driver information center , reduced power mode ?
ENGINE POWER IS REDUCED
Engine Control Module Description for the 4.8L, 5.3L, 6.0L and 6.2L engine

probably not if it is limp mode
the ECM puts the car in limp mode to prevent serious problems in the engine or transmission
could be no coolant, sump oil , transmission oil etc
run the fault codes and find the reason for the mode

I have ford galaxy.it went into limp mode.ive had a service.new starter.dpf cleaned.new inter cooler it has now come up with altinator problem

Hi Mary, You have not told us the vehicle make or model, or basically anything we can use to determine what fault it may have. Take your vehicle to a reputable garage and ask them to carry out a diagnostic scan. Regards John

The transmission control module is expensive and if the valve body solenoids went bad, then you didn't get a raw deal. Labor, parts and fluid are about right price wise.
You could not fix it on your own without a lot of tools and knowledge of the transmission.

That happened to my '95 OLDS Aurora... Turned out to be 1&2 gear shift solenoid had "popped" out. He replaced new solenoids and a factory patch kit and ****** shifts like brand new. Hope that helps you cause that was less than 10% the cost of a new/rebuilt transmission!

contect me urgent 03452663007

PO456 is most times a gas cap or gasket,
to get an incorrect gear ratio the transmission has probably started to slip.

Change the fluid and filter first off in the transmission and use only atf+4 fluid and possibly the govenor pressure sensor,and change gas cap.

check the trans fuse...it blowing, will keep the car in limp mode, either that, or you need to replace Solenoid B, 1/2 Shift Solenoids...

Yep ,sounds like limp mode ,should be in second gear.
Try,key on engine off,depress accelerator to floor 3 times within 5 seconds.Should reset trans.