Momule Posted September 13, 2006 Share Posted September 13, 2006 Hello everyone, I'm new to the board. I just bought a 1988 Comanche with the 2.5 4 cyl, 2 wheel drive for $300. Problem is that the last owner kept going thru fuel pumps, 5 to be exact. At least that is what I've been told. I am familiar with the engine since I have had them before. Where do I start to trouble shooting this? I know thr TBI pump will NOT interchange with the Multi Port model. Could it be that he was using the wrong pump? I am happy that I found this forum and look forward to my visits here,as I plan on restoring my Comanche. I hope to post some pics soon Thanks, Mark :cheers: Link to comment Share on other sites More sharing options...
Pete M Posted September 13, 2006 Share Posted September 13, 2006 Is the wiring resistor in the system? Inside the engine compartment on the drivers side wall near the front there should be a grey ceramic block maybe 3" or so long with a wire coming out of each end and a bolt in the middle holding to the wall. Link to comment Share on other sites More sharing options...
Momule Posted September 13, 2006 Author Share Posted September 13, 2006 I looked on the firewall and did not see a resistor. I know what you are talking about thou, a lot of the "Old" Cars had them. I also failed to mention that he has jerry riged a external electric pump in front of the fuel filter underneath. I flipped the Switch he had rigged up and the pump works, I just have not tried to jumpstart the truck yet...... :eek: Link to comment Share on other sites More sharing options...
Eagle Posted September 14, 2006 Share Posted September 14, 2006 The fuel pump ballast resistor on an '88 isn't on the firewall, it's on the inside of the left front fender. Between the fender and the air filter box. It's a greyish-white ceramic block about 2" long with a push-on terminal at each end. Link to comment Share on other sites More sharing options...
Momule Posted September 14, 2006 Author Share Posted September 14, 2006 Thanks, I'll look for it there. I guess if I put a meter on it I can tell if it is bad? Is this the only thing I have to look for? Other than replacing it and the fuel pump? :D Link to comment Share on other sites More sharing options...
mjeff87 Posted September 14, 2006 Share Posted September 14, 2006 That PO sounds like the type of person who puts $1.07 worth of gas in at a time (or whatever change he has in his pocket at the time :roll: ) just to keep it running. Try not to run with less than 1/4 tank at any time. The fuel pump is cooled by the fuel in the tank, and if you constantly run it at/near empty you'll burn it up (plus keep sucking crud into it from scavenging the bottom of the tank). Jeff Link to comment Share on other sites More sharing options...
Momule Posted September 14, 2006 Author Share Posted September 14, 2006 Ok Eagle, I looked under the air box and it was not there, just a 4 connector plug with a cap plug in it. I even took the washer tank loose looking for it...............I guess I will take the new add on pump off, go get a new in tank pump and try it. I guess I'm just trying to save 90 bux that I woukd pay for a new one :headpop: Link to comment Share on other sites More sharing options...
Pete M Posted September 14, 2006 Share Posted September 14, 2006 Link to comment Share on other sites More sharing options...
Momule Posted September 14, 2006 Author Share Posted September 14, 2006 Image Not Found This is my front end. What's up? I can't see any place the resistor was connected.......... Link to comment Share on other sites More sharing options...
Pete M Posted September 15, 2006 Share Posted September 15, 2006 Mine threads directly into the steel with a single screw. Link to comment Share on other sites More sharing options...
Momule Posted September 15, 2006 Author Share Posted September 15, 2006 I mean there is NO wires for it. :brows: Link to comment Share on other sites More sharing options...
Wildman Posted September 15, 2006 Share Posted September 15, 2006 Momule - no question that the past owner took some parts out of that area, but if you look at Pete's picture, you should look for 2 red wires tied together some were in that area. The part you want, from Advance Auto is - Ignition reststor GCR7, Part #9180002, $3.97 mum.....ere, how I know?, one of mine fell apart, and no start, so...... Eagle is right, that could be alot of the problems with the pumps frying up. There were other good suggestions posted here for you too. ;) Good luck. Link to comment Share on other sites More sharing options...
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