1994 AWD Astro van overheated, then lost ALL power
We bought this van approximately 8 days ago. It idled hard when we got it, but then we started getting a loud knocking noise whenever you hit the accelerator. It started driving really rough and then we started losing power and it died when we were trying to get off the highway. There was alot of smoke coming out of the exhaust pipe and from under the hood. Once it cooled down (about 40 minutes later), it started back up. Then, when we got on the freeway, we started losing all power. It then died. No lights, engine won't even turn over. Any Ideas?
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As I look at your letter, which is very good, I might add, here are the few things that occurred to me. The "loud squealing" should be a belt. You have one or several belts, and if they get loose, or are worn out ( that includes the belt rubber getting old and hard) they will squeal like that. However, the squealing also may be coming from one of the pulleys the drive belt or belts are attempting to turn. If you have a bad bearing in one of the pulleys, you can get that loud sound like " a train". If you are really careful, a "mechanic's stethoscope" might help you. That is to take a really long screwdriver, and put the tip on each of the pumps or base of each pulley, and the handle end to your ear, and you can hear the bad bearing "scream" with the engine running. Be blessed.
1995 Ford Windstar 3.8L Engine Knocking noise on top side of engine near center of Air Plenum. Engine was completely rebuilt 2 years ago (28,000 miles on Re-Built Engine/ 156,000mile on Van). Coolant level is SAT, Engine oil level is Sat. Van was driven 2800 miles since last oil/filter change. Engine started surging as van slowed down to make a stop then engine shut off. Restarted engine and heard knocking noise. Shut engine off immediately. The oil light flickers on dash with engine running. Do fuel injectors make tapping noises when degraded? Is it possible hydraulic lifter not able to leak down or does not fill with oil? Oil pressure issue with the dash light flickering? I can see if the engine has allot of miles on it, the intake and exhaust valves begin to leak-by how ever this not the issue. Where do you start to locate engine knock noise? How is oil pressure checked to see if pressure is too low? Any help where to start would be appreciated.
Misalignment of the belt, incorrect belt, worn or loose tensioner, Too tight of an adjustment (many service centers do this on purpose so when the belt breaks in it becomes properly adjusted, I do not believe in this philosophy), The belt is actually one long belt called a serpentine belt.....
yoy could have a bad t belt tensioner or bad t belt pulley. get this looked into right away. you have what is known as an inteference engine. if you lose that belt for any reason, it WILL drop a valve, and your're looking at a lot of money for an job.
The idle issue is normal. The idle is controlled by the ECU. There are no adjustments for the idle. Regarding the knocking noise, that could be several things, and I am hesitant to comment without hearing it. Take it to a Toyota Dealer & have a tech listen to it. We are very good at identifying noises on the service drive.