Ideas on S-10 troubles - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Maximum Overdrive · 06-16-2003, 07:22 PM

The basics: 86 4wd S-10 with a 2.8 V-6 with a TBI.
Problem: On a hot day after starting truck it seems to open the EGR all the way which in turn causes truck to idle rough or not at all. Sometimes it stays like this even after motor has been ran for a while and other times it quits after 15 min. of driving. On the cooler days there is no problem at anytime. Tested EGR valve and solonoid according to the limited information in the Haynes and Chilton manuals and it comes up good. Have recently replaced the MAP, Air valve and TPS to fix some other problems it had.

Any ideas on what to look for? Thanks for any help.

06-16-2003, 07:22 PM	#1
Maximum Overdrive December 21, 2012 Join Date: Apr 2000 Location: Black Eagle, Montana Posts: 1,634	Ideas on S-10 troubles The basics: 86 4wd S-10 with a 2.8 V-6 with a TBI. Problem: On a hot day after starting truck it seems to open the EGR all the way which in turn causes truck to idle rough or not at all. Sometimes it stays like this even after motor has been ran for a while and other times it quits after 15 min. of driving. On the cooler days there is no problem at anytime. Tested EGR valve and solonoid according to the limited information in the Haynes and Chilton manuals and it comes up good. Have recently replaced the MAP, Air valve and TPS to fix some other problems it had. Any ideas on what to look for? Thanks for any help.



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