acceleration problems


Asked by Nov 19, 2013 at 04:52 PM about the 2001 Nissan Altima GXE

Question type: Maintenance & Repair

when driving and pass the 60 mph and 2500 rpm lose acceleration. if I keep the gas pedal
down the car accelerates intermittently. if I let gas pedal the speed down to 55 mph and
2000 rpm and I can re-accelerate normally up to 60 mph and everything repeats .. please i
need help

6 Answers

there is a chance that your fuel pressure regulator is faulty...have you been using Chevron with Techron...I'm of a mind that the stuff cleans alright...the critical components of the fuel system...yah, like the diaphragm of the fuel pressure regulator...I'm not suggesting that you buy one...but check it to make sure that it's doin' it's job~ gulator

8 out of 8 people think this is helpful.

....okay the symptoms that you're describing are consistent with a defective EGR valve...also check that one to see if it operates when vacuum is appled to the port~

8 out of 8 people think this is helpful.

if the butyl rubber hoses (chewing gum and coal-tar) are cracked and bloated would recommend changing ALL of them with silicone replacements...these are available from summitracing...everybody's got kept secret~....p.s. 'bout ten times more expensive tho~

4 out of 4 people think this is helpful.

If you disassemble the EGR valve (assuming the diaphragm still works) would take a little brake cleaner to it to remove all the carbon and shit that gets accumulated in there...stopping it from operating normally....but "stickin" in the ON exhaust gasses to "cool combustion temps" when it isn't called for~

4 out of 4 people think this is helpful.

of course clean the mating surfaces free of oil and contamination...and order up a gasket for the EGR....we don't want to re-use gaskets...they will leak prematurely~ %2Bvalve+gasket&tbm=shop

4 out of 4 people think this is helpful.

My car doesnt really accelarate when it heats up normal but when i barely turn on the car it drives normal i need help please

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