Power loss I have always been able to easily reach speeds of 130 mph+ in my car until recently. I noticed the my temperature gauge was going up and down erratically so I immediately took it in to my reapair shop. After advising me that it needed a new thermostat, they replaced it, flushed my radiator, and also changed my air filter as they said it was dirty. After picking up my car i noticed that when ever i tried to accelerate quickly it wouldnt pick up like it would just prior to me tkaing it in. Also when I was attempting acceleration I could hear a noise that sounded like when you **** something up in your vaccuum and its gets clogged. Have any idea whats going on
Turns out that one of the hoses that runs off of the air filter was not replaced properly and reduced power to my car. Once the hose was properly re-installed the car bgan running great!Turns out that one of the hoses that runs off of the air filter was not replaced properly and reduced power to my car. Once the hose was properly re-installed the car bgan running great!
Sounds like induction noise, ask the repair shop to check all the air intake pipe connections(hose clips) that they had to remove to replace the thermostat.
Testimonial: "One of the hoses leading from the air filter was not installed properly, and after re-installing it everything works great!!!"
It could be because you just had your thermostat replaced. They are usually spring loaded and because your old thermostat spring was worked in it seems like the new one istn't working. Give it a little time to be worked in if you still have a problem get the thermostat checked.
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An intermittent problem like this is usually caused by a wiring/connector problem, probably at the back of or near the instrument cluster (IC). The IC performance should not cause engine problems - it is mainly a information readout device, but does have a datalink connection to the ECM and if there is a wiring problem with the datalink, you will get the intermittent.
This may have started with the way your aftermarket sound system was wired in and the physical impact it may have on wiring nearby. You may have a damaged cluster, but the only thing I can suggest at this point is to carefully check your wiring in the dash, particularly how you have wired in the power feeds to the radio.
Do you have an OBDII scanner to check the real temperature? Want to make sure it's not overheating. If it's normal, could be your temperature sensor starting to go out, or ignition switch. Any check engine lights? If so, get the code for me, can go from there. At a constant speed, you sure it wasn't a misfire instead? Check your trans fluid, make sure it's full. I was just in Tahoe, pretty sad not much snow at all.
its possible that you have a head gasket starting to go bad and driving it at a higher speed the engine gets hotter and can force combustion chamber gasses into the cooling system causing a higher temp showing up on the gauge.you can get a block test down that hopefully show it up depending how early in the stage the gasket has deteriated.sound this as a diagnostic sign back in the early 80`s.
Could be the custer is the problem , do you know how the gauges get their info. Do you know what class 2 serial data communications are . The culster is shorting out the data network or possibly the VSS - vehicle speed sensor . or input speed sensor . These sensors are powered by the five volt reference circuit from the PCM . Sensor's go bad internally with heat , after warm up . an bring down the network . Testing the five volt ref. circuit ,is the way to diagnose .
Speedometer
The IPC displays the vehicle speed based on the vehicle speed signal from the PCM. The PCM converts the data from the vehicle speed sensor to a 4000 pulses/mile signal. The IPC uses the vehicle speed signal circuit from the PCM in order to calculate the vehicle speed. The speedometer defaults to 0 km/h (0 mph) if a malfunction in the vehicle speed signal circuit exists.
Engine Coolant Temperature Gage
The IPC displays the engine coolant temperature as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the engine coolant temperature. The engine coolant temperature gage defaults to 75°C (160°F) or below when:
• The PCM detects a malfunction in the engine coolant temperature sensor circuit.
• The IPC detects a loss of class 2 communication with the PCM.
Turns out that one of the hoses that runs off of the air filter was not replaced properly and reduced power to my car. Once the hose was properly re-installed the car bgan running great!
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is this car a turbo?
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