Infiniti Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is***** is going up but vehicle is not accelerating that would point toward a transmission problem. It is more likely a serious problem which is going to require a transmission rebuild or replacement, you can make sure fluid level is correct but after that I would recommend bringing to a transmission shop. Sorry about the bad news, let me know if you have more questions. Thanks.
Ok, you may have a couple problems. Is the check engine light on? Does it ever flash? Thanks.
That problem does sound like a weak fuel pump but that shouldn't cause rpm to go up without vehicle acceleration, that sounds more like a transmission problem. With the sputtering problem I would connect a fuel pressure gauge and check pressure when it is running good and compare pressure to when it is running rough. Most parts stores have fuel pressure testers they will barrow out for free. If pressure is lower during rough running period replace the fuel pump. Let me know if you have more questions or if there is anything else I can do to help. Thanks.