My car recently started dying all the time, now you can't hardly go down the road without it dying. You can restart it, but it is getting harder and harder and more often. We changed the fuel filter and map sensor, but this hasn't helped. What does code 34 mean, too? What do we do?
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Re: car keeps dying
Trouble Code 33 and 34 are the MAF/MAP Sensor
Circuit. It sounds like you've replaced that sensor already. Did you also have the code 34 before putting in the new sensor?
Or did this code start after it's replacement? Any other codes appearing?
Troubleshooting it would depend if it has the Speed Density
Update. The dealer should be able to provide that info.
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I have 94 s 10..4.3 v6. it does the same thing have replaced fuel pump and filter,ignition module,cap rotor plugs wires,coil,ground strap...driving down the road jus dies like the key got shut off....for a while when troubleshooting through the parts you could get it to restart.....now when it dies it cranks really hard when trying to restart..ive checked the timeing its fine....if i wait a few min it will usually start...sometimes it will show a check engine light sometimes not......never know when it will happen sometimes jus down the the road from the house sometimes 100miles down the road......sometimes three times in a mile sometimes not for weeks at a time..Wtf...Im ready to shoot it like a lame horse....its a shame too its a sharp lil truck thats a two owner and never spent a night outside in its life...i knew the original owner ...i bought it with 90,000 on it it only has 148,000 now and still looks like new...
If the brake pedal goes hard right BEFORE the car dies, and not after, then you could have a problem INSIDE the brake power booster. try to verify this next time it dies at a stop, if you can safely pull the dead car off the road into a driveway (or try to make it stall in a bumpy parking lot) - then before you try to restart the car, open the hood, pull off the rubber hose where it's plugged into the brake power booster --> you SHOULD hear a big "Swoosh" of air being sucked into the booster because there's supposed to be a strong vacuum there even after the car stops running. if you get nothing there, your car is dying of an excessive vacuum leak through the brake booster.= bad booster.
no stumbling first? sounds ignition related check all the plug ins on ign system I assume it always starts right back up ok? sounds like either crank or cam sensor,if I had to guess it would be crank first but next time it dies try restarting right away without shutting key off first and let the engine crank for about 30-40 sec if it don;t start it should set a dtc which will tell you either crank or cam sensor but it will start happening more often until one day it just wont restart again.
check the harmonic balancer(crank pulley) to see if it is loose or soaked with oil. if it is loose, the balancer could be broken off around the crank shaft. try turning it by hand, it should not turn easily.
if it is oil soaked this wil also damage the balancer.
these 2 conditions can throw the timing in and out, causing your problem.