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Fuel Injectors??
My 91 Caravan 3.3 (99k mi) is starting to exhibit a hard starting
problem. It ususally takes to tries on the starter to get it going. Once it starts, it runs fine. The fuel pump/filter has been changed recently. Could this be an injector problem? Would an injector that's going south produce a fault code? |
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"Daniel J. Stern" > wrote in message n.umich.edu... > On Wed, 27 Jul 2005 wrote: > > > My 91 Caravan 3.3 (99k mi) is starting to exhibit a hard starting > > problem. It ususally takes to tries on the starter to get it going. > > Once it starts, it runs fine. > > Several different things can cause extended-crank conditions. One of the > Step-by-step systematic diagnosis, once again, is the way to find and fix > this problem. And there's excellent step-by-step diagnostics guide in the Factory Service Manual. (not chiltons or haynes) Ted |
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> wrote in message oups.com... > My 91 Caravan 3.3 (99k mi) is starting to exhibit a hard starting > problem. It ususally takes to tries on the starter to get it going. > Once it starts, it runs fine. The fuel pump/filter has been changed > recently. Could this be an injector problem? Would an injector that's > going south produce a fault code? > More then likely its the check valve in the fuel pump letting the fuel drain back to the tank causing no fuel in the rail to the injectors. The simple check would be before starting the engine cycle the key on for 3 seconds then off then on then off, that will cause the fuel pump to energize and supply fuel to the injectors, now start the engine... My guess is that it will start right up each time you try this. Glenn Beasley Chrysler Tech |
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I changed a fuel pump and filter on my '96 Sebring CV, and had the
exact same problem for about a week afterward. I then filled the tank to the very top, and the problem went away immediately. I think that the fuel system must have had an air pocket in it somewhere. It has been perfect ever since. I know of one other person who suffered the same malady after a fuel pump replacement. On 27 Jul 2005 04:42:21 -0700, wrote: >My 91 Caravan 3.3 (99k mi) is starting to exhibit a hard starting >problem. It ususally takes to tries on the starter to get it going. >Once it starts, it runs fine. The fuel pump/filter has been changed >recently. Could this be an injector problem? Would an injector that's >going south produce a fault code? |
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I have the same problem on my 1993 3.3 GV. The fuel pump died last year and
I had it replaced. Sometimes it will start fine other times it takes a few tries. I have noticed recently when it does start it acts as if there's excess fuel in the cylinder, because it almost sounds like a backfire. Is it possible 1 or more injectors are leaking, causing the hard start, and when cranking, it's filling the cylinder with fuel and then when it fires you get the 'explosion' from a little too much fuel ? Checked and replaced the relays and they replaced the fuel filter when they replaced the pump. I haven't put a pressure gauge on it yet. Those things are expensive to use 1 or two times. thanks, nick "maxpower" > wrote in message ... > > > wrote in message > oups.com... >> My 91 Caravan 3.3 (99k mi) is starting to exhibit a hard starting >> problem. It ususally takes to tries on the starter to get it going. >> Once it starts, it runs fine. The fuel pump/filter has been changed >> recently. Could this be an injector problem? Would an injector that's >> going south produce a fault code? >> > > More then likely its the check valve in the fuel pump letting the fuel > drain > back to the tank causing no fuel in the rail to the injectors. > The simple check would be before starting the engine cycle the key on for > 3 > seconds then off then on then off, that will cause the fuel pump to > energize > and supply fuel to the injectors, now start the engine... My guess is that > it will start right up each time you try this. > > Glenn Beasley > Chrysler Tech > > ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
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