What is wrong with my car? I have a 2003 Nissan Altima 2.5 S. It will be running great and then it will "chug"; the tachometer will go crazy for a second and then acts fine again. It's nerve wracking, needless to say. I bought the car used in July and it has approx. 78,000 miles on it. I've contacted the company that I bought it from and they just blow me off. This happens while I'm on the freeway and in low speed on city streets. There is no check engine light on.
I contacted Nissan this morning and realized that there is a recall on the ECM that was never taken care of on this car. Is it possible, this could be causing the problems?
I forgot to mention that this is a 5 speed manual transmission. There doesn't seem to be any rhyme or reason to when it happens, it just happens when it wants to. The car does not die, it just chokes and the rpm gauge goes haywire and it loses power for that moment.
Call 1-888-CAR-TALK that's 1-888-227-8255 Hello you're on Car Talk.
Manufacturer: OTC. Each. Features and Benefits: Can be used as a contact as well as a non-contact tachometer Four styles of contact adapter tips clip easily to the top of the phototach Infrared technology makes the phototach accurate, convenient, and eas
Features of the Fisher Scientific Traceable Digital Tachometer: Touchless and Contact Measurements Model is supplied with four "AA" alkaline 1.5V batteries, rugged ABS case, self-adhesive reflecting tabs, internal light, cone and two wheels (for measuring speeds), and a carrying case. Vivid 0.5 in. high display Measures the speed of a centrifuge from a distance up to 12 in. (30cm) Five-digit LCD; memory feature lets you recall the highest, lowest, and last reading Rugged ABS case Use the touchless sensor to get speed readouts in rpm; use the contact sensor for direct readout of surface speeds in feet per minute or meters per minute Detects speeds from 0.1 to 99,999rpm; resolution is 0.1 below 1000, and 1 above 1000 Contact sensor provides readouts from 0.1 to 19,999rpm, 0.05 to 1999.9m/min. or 0.2 to 6560 ft./min; accuracy, 0.05% + 0.1rpm from 0 to 999.9rpm and 0.05% + 1rpm from 1000 to 99,999rpm Dimensions: 8.50L x 2.50W x 1.50 in.H (21.5 x 6 x 4cm) Weight: 10.50 oz. (298g) Certifications: Individually serial-numbered Traceable Certificate is provided from an ISO 17025 calibration laboratory accredited by A2LA*. It indicates traceability to standards provided by NIST*.
Photo Tach with high intensity laser beam Laser method allows for longer detection distance, up to 6 feet away, resulting in superior performance over infrared models Features max/min memory and continuous backlit LCD display Great tool for a variety of RPM applications RPM Range - 0 to 99,999 rpm Resolution - 0.1 rpm (0 to 1,000 rpm), 1 rpm (over 1,000 rpm)
Overview:Model: DT-2234ADigitally measures rotations (revolution per minute / RPM)Digital display gives exact RPM with no guessing or errorCarrying pouch includedSpecification:0.7" LCD reading displayRange: 2.5 RPM ~ 99999 RPMResolution/step: 0.1 RPM for range 2.5~999.9 RPM, 1 RPM for 1000 RPM and overAccuracy: /- 0.05%Sampling/averaging time at 60 RPM and up: 0.8 secondMeasuring distance: 50mm ~ 200mmPowered by 3 x 1.5VAA / UM-3Weight Approx:136.7gSize Approx:16 x 7 x 3 cm
Extech RPM10 Photo/Contact Tachometer with built-in InfraRed Thermometer
Tachometer jumping?
Hi - I just purchased an old 1978 Suzuki 185. The tach jumps until I press down and forward on the tach. It seems obvious that the when I press down I'm helping the cable make contact. However when it's having problems all the jumping occurs above 7k. I would have thought if my cable lost contact it would drop to 0. Does any of this make sense?
Like Tinker says, the cable may (probably does)need lubrication. Disconnect it at the tach and dribble some oil down it. When you put it back together, make sure the nut is tight. Mine used to vibrate loose. A loose nut can cause the same symptoms(intermittent contact with the cable).
