93 mustang 50v8 engine what causes engine to quit running at high rpm then restarts as rpm falls

SOURCE: 1967 Ford Mustang-- idle problem

If I had to fix this, I would use a tiered approach. You have several issues to deal with. 1st- is the engine timing correct (lets assume it is), try adjusting the choke (blackdial on the ffront of a single barrel, turn towards lean) this should bring down the idle. Turn it till it almost dies then turn in the opposite dirrection SLIGHTLY until it steadies out. The engine might shake more now (it did w/mine) so now you losen the 1/2 bolt that is behind the distribibutor. Now that the dis. is lose turn the whole diss. assembily slightly in either direction. One way will steady out the engine, this is adjusting the ignition timmiing. If all that works out you should be golden. Of course there is a lot of possible causes connecting rod length between the gas pedal & carb, vac. leak(through a vac. gauge on it, that will help finding wether or not there is a leak). if this doesnt work repost with results and a vacum reading. I'll check back

SOURCE: runs rough

How long have you had this problem? It could just be a bad tank of gas. Other things to check:
1. fuel pump and filter
Could be running on only 5 cylinders due to
2. spark plugs/wires
3. plugged fuel injector
Any problems with electrical? Like lights dimming at same time as running rough?
4. could be bad alternator putting excessive load on engine.

mike loshbough

• 1011 Answers
• Posted on May 02, 2009

SOURCE: ENGINE MISSING ABOVE 3800 RPM

no the code is most likely from a dpfe sensor for you egr system not the egr valve itself.a clogged fuel filter though might cause your low revs

SOURCE: my gas gauge on my 93 ford mustang quit working.

i suspect a broken wire between guage and sender unit in tank, but the sending unit could be bad,find the wire to the float guage in the tank and disconnect it, if fuel level does not change then then touch the wire to a ground, if the guage changes then the wire is ok and the unit is bad, if it does not change check wiring and guage for faults.

SOURCE: 2005 MUSTANG GT SPEEDOMETER JUST QUIT WORKING

Could be a fuse my old sunbird would tell me it was going 60km an hour at a dead stop and when i started moveing it would drop to 0 replaced ALL the fuses and had no more problems