WRC17 Posted May 20, 2013 Share Posted May 20, 2013 Hi all, My car has developed a problem where just about every time I start the car it takes at least 5 or 10 seconds for the car to start. Sometimes it can takes almost 20 seconds. Once the car starts up it runs just fine and doesn't stumble or lose power. The starter is also working fine so my thought is it is either a spark or fuel issue. I friend of mine is having a similar issue with his car and he said his was a fuel pressure regulator. Any other suggestions as to what else it might be? Quote Link to comment Share on other sites More sharing options...
Domzs Posted May 21, 2013 Share Posted May 21, 2013 Cold or hot start problem ? Quote Link to comment Share on other sites More sharing options...
WRC17 Posted May 21, 2013 Author Share Posted May 21, 2013 Every time. Doesn't matter if it's cold or hot. Quote Link to comment Share on other sites More sharing options...
NewZed Posted May 21, 2013 Share Posted May 21, 2013 It's either the regulator or the check valve in the fuel pump, if holding pressure is the issue. See if fuel pressure drops to zero after the engine is shut off. Quote Link to comment Share on other sites More sharing options...
WRC17 Posted May 21, 2013 Author Share Posted May 21, 2013 Is the check valve part of the fuel pump? because the fuel pump was replaced a few months ago by the previous owner. Quote Link to comment Share on other sites More sharing options...
Domzs Posted May 21, 2013 Share Posted May 21, 2013 Check valve is part of the pump . Check for fuel press. drop after key off . Quote Link to comment Share on other sites More sharing options...
wadenelson Posted May 31, 2013 Share Posted May 31, 2013 Suggest you "t" in a fuel pressure gauge and see what's going on. A leaky injector or pump check valve will allow gradual loss of fuel rail pressure causing excessive cranking times. Quote Link to comment Share on other sites More sharing options...
Rocket Rodent Posted June 1, 2013 Share Posted June 1, 2013 Suggest you "t" in a fuel pressure gauge and see what's going on. A leaky injector or pump check valve will allow gradual loss of fuel rail pressure causing excessive cranking times. ^^^ This. I had a cracked injector in my Z31 that caused this exact issue. Quote Link to comment Share on other sites More sharing options...
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