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94 ford probe gt engine stuttering problem?
my car, which has always run perfectly smooth, has developed a stumble where the engine jerks (almost as if i was just pushing the throttle in and out in and out quickly) at low engine speeds from about 1500-2500 rpm. it seems to fade as i go past about 35 mph. it also does not cut out or anything past about 3000 rpm. i can floor it to redline (as long as i start above 2500) and it responds normally, maybe a little sluggish though. I've also had a starting problem for quite some time. when the car is dead cold (after sitting overnight at freezing temps) and when it has been sitting less than ten minutes, it starts perfectly. any other time i must give it gas to get it going. idle has also been a little rough lately when the engine is warm. it always starts though and has never failed me. i'm wondering what your ideas are on what it is. i was considering o2 sensor, fuel pump or injectors. i think the spark plugs are decent so i'm pretty sure those are not the problem.
2 Answers
- ibLv 61 decade agoFavorite Answer
sounds like an weak ignition. start with plug wires and plugs (even if plugs look ok, they can be bad)they are the cheapest thing to change. o2 sensor will not effect cold start up. they only come in to play when the engine has reached operating temperature.
Source(s): 17yrs auto tech.. - kokalLv 45 years ago
The ninety 4 Probe GT could be a exciting motor vehicle to tension. the two.5 Litre V6 is the comparable engine used in comparable years Mazda MX-6's. this could be a Mazda engine and drivetrain in this motor vehicle, and the areas are rather not that inexpensive whilst in comparison with different autos. If the CV joints choose replaced, you may get the areas your self for around 50 dollars each and each, then you certainly choose the boots and the kit and understand how as a fashion to alter them your self. A storage may be able to cost a pair hundred funds to alter them, because of the fact the activity is particularly hard artwork in intensity. The water pump, lower back, isn't fairly high priced once you purchase it your self although, having it put in is quite high priced because of the quantity of hard artwork and time in touch. computerized transmissions could be a bushy problem. Flushing the tranny and setting up new fluid could easily be a large concept, yet whilst its been slipping, there is greater advantageous than possibly some placed on. changing the transmission is an high priced chore as that's the two hard artwork in intensity and the transmission itself is quite high priced. changing the unit may be able to run into the 1200 to 1500 dollar variety. i could easily attempt the flush and fill first and spot if it facilitates. you probably did point out that the motor vehicle has 131k miles on it, so i could wager that there are additionally different issues that ought to apply changing. what sort of maintenance has the motor vehicle considered interior the previous? The timing belt has a constrained lifetime, and if it breaks, your ineffective interior the water. this could be a inexpensive belt, yet high priced to have replaced at a save. Oxygen sensors and spark plug wires are high priced for this motor vehicle, whilst placed next to maximum. even however 500 funds doesnt sound like distinctive money for a motor vehicle, i could easily have the motor vehicle thoroughly inspected with the help of a mechanic till now buying it. it ought to truly fee you 5 situations as plenty just to get it sturdy lower back. look at it, yet my own adventure could tell me to maintain finding.