Having problems with your 1991 GMC S-15 Jimmy ?

95 Gmc Jimmy once in a while won't start

\015 I have a 1995 GMC Jimmy that normaly starts right up. Once in a while it will stall as soon as the engine catches. Then it will turn over but not start. After 10 min or so of trying it starts and will start everytime after for a while. People have suggested a relay (not agreeing where it's located) the spider valve, etc.\015 Posted / edited by AnonymousUser on : 20-09-2021

Answers :

The fuel pump relay is in the glove box. There is a panel in the back that say relay on it and it's in there, the middle relay from the three is the fuel pump relay.\015\012\015\012The other thing to is change your fuel filter, that is on the inside frame rail under the driver just on front of the transmission cross frame.\015\012\015\012Also check the fuel pressure at the shredder valve,you should have 60 to 65 PSI in the system to have the spider injection system you work. \015\012\015\012Recap: replace the fuel filter first since that's the cheapest and easiest thing to do, check the fuel pressure at the shredder valve and you can do that at Auto Zone and they can give you the step by step instruction on how to do it if your nor sure how to. Take about 5 min to do.\015\012\015\012If pressure is low,then your fuel pump may be getting weak and needs to be replaced soon. At worst, it's going to be your Fuel injection system since they have a bad history of the poppet valve going bad, but we deal with that last.\015\012\015\012Good luck and keep me post. Be glad to help.
Repair Help & Product Troubleshooting for 1991 GMC S-15 Jimmy

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