Question about GMC Cars & Trucks
Hello , i was in a petrol station last night , got me a full tank of gas when suddenly as i accelerated off the car started jerking aggressively and jumping , i braked and it kept on revving by itself with continious pulses of revs despite the fact that i took my foot of the gas peddle , then 10 seconds later the car was completely fine and i just drove off . I changed the fuel pump last year at around the same time as well as the baterry , what could be causing these problems ?
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Posted on Jan 02, 2017
your gas tank needs flushing out,maybe got gritt inside. carburator needs filter needs cleaning .,possible air leak from gaskets., what about distributor breaking down
Posted on Jan 29, 2009
This sounds like a vacuum control problem. Since part of the problem is when the engine is cold; a thermal switch is venting vacuum until the engine warms up enough to shut down the thermal switch, thus restoring a steady idle. Vacuum can be affecting high rpms while running too. You could have a misrouted EGR vacuum line opening the valve at the wrong time. There are sometimes hose routing decals on the radiator shroud or under the hood. These can be visibly checked.
Posted on Apr 20, 2009
if your engine starts up and dies right away the you probably have a fuel pump problem and the service ride control mean that your air ride compressor has gone bad just turn your key to the on position and wait about 30 seconds you will here buzzing from the left rear wheel area if the compressor is working
Posted on Jul 19, 2009
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