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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otad doesn't help ---did the trans come out of an 05 astro van s-10 blazer /jimmy s-15 or safari and it your awd because you need to match the rwd with an rwd and a awd with an awd /4wd from above and the unit has to be compatible with the 05
when you say car lost power bought a new battery.sound like alternator not charging battery.with car running your voltage at battery should be 13.5 volts or 14.5 volts it not alternators need replacing.have garage replace alternator if faulty because 1993 to 1994 cars if you disconnect battery car would lose memory causing car not to idle.the car will stall out at a stop light or stop sign whole lot.it would relearn itself but the stalling out dangerous around a lot of traffic.
Let's blame the MAF senor since it is apparent the fuel system is overfueling. TheMAFsensor tells the puter how much fuel needs to provided for the A/F ratio.. Also, ck it's the first sensor in the duct coming from the air filter. The overheat could be related. Take care of this and get back to me. The maf can be purchased at a parts store and install yourself Before anything, Check to ensure that ducting has not come loose at either end which would lie to the msf sensor
code 43, i would expect with running rough but that's not the cause , its a result ,if the system detects noise (knock) it will try to compensate by retarding the timing to save the motor , built in self preservation , i hope your not running on 2 year old gas , i'd be amazed its even running at all , gas varnishes up bad enough in 6 months to 1 year , i suggest getting some fuel additive in there to stabilize and clean the fuel system , or have it drained and start over with fresh gas and go from there . cheers .
the problem is common for the 93-94-95 4.3 vortex its the spider injection located inside the plenum the part costs between $250 to 400 i had to replace on girlfreinds 94 blazer. ifound one o ebay for $100
underneth the intake manold is were your fuel injector poppet nozzles are, more than likely the fuel line hose that goes thru the back of the intake is split and leaking fuel underneth the intake manifold if you check the fuel pressure you will find that the fuel pressure will drop down to 0 psi as soon as the fuel pump shuts off and it should hold pressure