Question about Suzuki Grand Vitara
Lack of accelaration, engine management light on, computer says throttle cable sensor? Had throttle cable replaced. Ocassionally the revs can rise even when the engine is just running but the common fault is it just had little exceleration and often goes faster when you lift your foot up off of the pedal! Confused!
Lots of odd things can happen in fuel injected cars sometimes the reverse of what you may expect. typically a malfunctioning O2 sensor can affect adjustments to TIMING thus for same accelerator position engine revs can rise/fall or become unstable just because O2 sensor is duff. if O2 bad poor acceleration/easy stall is definitely likely due to fluctuation in timing. can also cause pinking. best to check OBD codes if you can. some do not cause engine light to show and if intermittent, are cleared if you disconnect battery. check air filter and replace. if its diesel though you must suspect fuel pressure too.
Posted on Dec 14, 2017
Do you have a brake fluid accumulator(ABS)? If yes, the pistons/pulsing assembly are worn, and may need to be replaced.
If not, you may have a vacuum leak in the power booster (located on the firewall). Check all hose and clamps for a tight fit/cracks,etc. Vacuum leaks cause intermittent brake failure lights.
You may want to park the vehicle on a clean surface, pump the brakes a few times, and check for brake fluid leaks. If there is a leaking wheel cylinder (back brakes) , caliper (front brakes), or brake line, you will be able to see it.
Leaks cause pressure loss, and, thus, the brake warning light will illuminate.
Posted on Mar 26, 2009
replace the idle air control valve.(on the bottom of the throttle body) may be easier to remove the throttle body and turn in upside down to remove the idle air control valve and hoses. be sure not to pinch the gasket. after u do that be sure to replace any coolant that may have came out. then, start the car, rev the car to 3000 rpms till the radiator fan comes on , then let the vehicle idle for 20 - 30 mins . the computer should relearn the idle. local honda dealer should have the valve in stock,
Posted on Apr 05, 2009
Take the car to an autoparts store and have them scan the computer for any fault codes stored. The check engine light is to alert you that the computer has noted a fault in one of the car's systems. Getting the codes will show what the computer has noted and curb the need for speculation. Most parts stores will perform the scan for free. Hope this helped and best wishes.
Posted on Sep 06, 2009
Haynes don't cover that engine. I've found a copy of the H25 engine manual which is similar to the H20 engine we have. If you search for SQ416 in google you'll find a copy you can buy or if you're lucky you'll find a free download somewhere like I did!! :-) It has helped me loads.
Posted on Dec 03, 2009
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