Rear main seal was leaking r&r auto trans replaced rear main seal. tried to start the vehicle but no success, found spark evident but injectors staying on causing cylinders to fill up with fuel. replaced suppress relay & computer. also found crank sensor wiring faulty so replaced sensor. found injectors to be functioning ok now but engine wont start, will crank over, has spark, has fuel but wont start??????????
please if you could help with this problem because its doing my head in.
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Re: engine wont start
Hi! Saft question But as your B20/23 is a safe engine the Cam/timing belt hasn't sliped a few teeth. Also make sure all relays are well seated in the base including the Big round one behind the ash tray/stereo. Have you replaced the fuel relay with the correct one? they differ, one has Copper Tangs the other has plated?
Check the wires from the cam sensor at rear.
Hope this helps?
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I wouldn't be surprised if you didn't have to remove the engine/transmission, split the trans from the engine, remove the TC or clutch/pressure plate, (you should have drained engine oil and auto trans oil before doing this), remove the oil pan, remove the rear most main bearing cap, rotate a new seal into place, replace rear main bearing cap, torque, etc. and reassemble.
Worst case you may have to remove harmonic balancer and front timing chain cover, front seal, release all the connecting rod caps and main bearing caps, remove the crankshaft, replace the rear main seal and reassemble. It's a 1966 engine...you should consider replacing the front timing chain with a roller chain as well as rod and main bearing inserts if you have to do all this.
Check the rear main seal, if its coming out between engine and transmission it is time to replace. Usually this seal wont stop leaking even with seal conditioner. Depending on engine and chassis either the trans or motor will have to come out in order to replace the seal. If the seal is external than remove the trans, if a 1 piece internal than engine has to come out. Any way you look at it is a time consuming and big job.
If there is no sign of oil consumption, then you have a leak some where. Un-noticed leaks are usually found at the rear main seal and leak as you are driving. If you crawl under the vehicle and closely inspect the area where the engine block meets the transmission you may find evidence of an oil leak.
First things first - your rear main seal is worth replacing if you plan on keeping your rig. (Sounds like your friend doesn't want to get roped into doing the work) Rear mains wear for all kinds of reasons - something as simple as using cheap oil.
Your exhaust leak you're going to need to get under with gloves and feel pipe(s) at flanges etc... if you don't feel up to it, have a good muffler shop look at it.
Lastly, you have a rear trans seal leaking which is blowing trans fluid back on driveshaft. It's another job you might have a shop do.
need to identify where leak is coming from wipe clean bottom of transmission and check trans lines ,dipstick tube, rear seal ,pan for leak or drip start van and let run drive around block than park and recheck trans for leak if leak by where engine and trans meet than front seal anywhere else fix and or replace front seal two choices first can try a trans leak additive follow instructions carefully or need to pull trans to replace seal
Probably, go to the auto parts store.They sell stop leak fluid for the transmission.
Its really best to get the van over head (ramps?) and look and see the leak and fix it properly.It could burn up the trans out away from home if your not careful.
Replacing the rear main seal is kind of a long one. It involves seperating the motor and trans. Depending if it is manual or auto,would weather you have to remove the flex plate (auto trans) or fly wheel (manual trans). Then of course there is removing the old seal, making sure it is free of burrs and putting the new one in, and reassembly.
You have to remove the transmission, remove the torque converter to access the seal. Most likely the bushing behind the seal is worn out allowing fluid to leak past the seal. After the trans. is out, take it to a trans. shop. It requires a special tool to change the bushing. Seems like a bunch of work for $10.00 in parts. The rear main seal requires pulling the pan to access it. When the trans. is out, this is the time to replace the rear main seal on the engine.