Transmission wont shift from first untill over 3000 rpm
It was fine untill engine overheated (several times) due to blown head gasket. I tried the Head gasket seal repair in a bottle. followed directions to the T. Backflushing the system and refilling as needed. Weather was cold (12 degrees F) but kept garage warm during drying for 12 hrs. once system was refilled I warmed up engine at idle then drove. It immediatly overheated and wouldnt get out of first gear. going into gear was with a jult not smooth. I rebuilt the engine but the transmission problem is still there...Can I save her?
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Re: Transmission wont shift from first untill over 3000...
One often omitted and forgotten fact: Your transmission is cooled by the radiator. During an overheat condition radiator temp increases, causing overheating of trans fluid. I would drain and re-fill transmission (also check to see if converter has a drain plug...some do) and blow out trans cooler lines to ensure there is no blockage inside radiator/trans cooling portion. Use a good quality trans conditioner (I use Lucas, but there are others out there that probably work as well) along with new oil. If trans oil has overheated and formed any gummy deposits, this can prevent valve body from working correctly. This is your best chance to restore operation. If it dosent work, and you do not have any control wires disconnected anywhere, you likely will need a rebuild! good luck
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Overheating could be due to a restriction in a cooling passage, a problem with the water pump, or a blown head gasket.
If you get way too much pressure in the cooling system, even before the engine is warm, try a cylinder compression test. It's probably a warped head or blown gasket (or both).
If the compression test seems fine, you should reverse flush the system to try dislodge any restrictions.
1st check your fluid level, if its good I would suggest taking it in to your mechanic and have them service the transmission which involves dropping the tranny pan and replacing the filter and reinstall pan with new gasket and top fluid levels. A step further would be also have a tranny flush which will cost more due to labor and all the fluid neccesary to flush the system.
Hi Martin, As your vehicle is fitted with a distributer, try resetting the ignition timing. I believe it requires setting with a strobe and it should be idling at 750 rpm (manual box). I'm not expecting a drastic improvement with that action, because I'm suspecting that maybe the engine has been overheated at some time or another and you may need a cylinder head job carried out. I'm suspecting a blown gasket between cylinders. The higher the rpm the less leakage and the greater the power output. That would explain the lack of power up to 2500 rpm Regards John
you might have a broken motor mount or ****** mount,as for the overheating you might need a new thermostat or water pump,but check your antifreeze first to make sure its strong enough for this time of year
Depending on how severely it overheated, it could be that the head gasket is damaged and in need of repair. There are a few different ways of diagnosing the head gasket, the simplest is to crank the engine while you have a helper smell the exhaust pipe looking for either blue smoke (burning oil) or a white smoke and sweet smell (burning coolant). If you have a radiator cap your should remove it and look for oil (signs of blown head gasket) or a brown color in the coolant. Other options are to do a compression check on the engine.
if you drive on hills at high rpm ur engine temp. will surely shoot up due to the load on ur engine while trying to gain the desired speed/ u should not drive uphill with high rpm try to maintain low speed with low rpm
Try changing the transmission fluid and transmission fluid filter. It is a fairly easy but kind of messy job. Just buy the new fluid and filter, Grab your metric socket set and go at it. NEVER WORK UNDERNEATH A HOT VEHICLE. You have to pull the transmission pan to do this job. When you break the gasket seal several quarts (liters) of transmission fluid will cascade down on you. Be ready for it. Don't forget that when it stops draining there is still a lot of fluid left in the pan. When you finish cleaning up the fluid clean the gunk out of the pan. Install the new filter and reinstall the pan with a new gasket. Do not over torque the pan or filter bolts. If you strip them out or break them off you will need professional help to repair it. Refill the transmission with fluid. It should take six or seven liters.
Do you get a check-engine light, or does the transmission O/D light flash? Many times, this is due to a speed sensor on the transmission. When the sensor goes, the transmission has to do default shift timing and it will shift very late. Usually, this will set a code in the onboard computer.