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all at once my power window, windshield wipers and heater motor will not work. I have checked all fuses and relays and circuit continuity. what i the problem? The three wires coming out of the ignition switch in the steering column have power out of two wires and one is ground, all are good????

Response:

Most of the time I need to put and hold my foot down on the gas pedal to start the motor.Wondering if the erg valve could be the blame? 89 f250 5.8 fuel injected. Starts great when cold start.  I have a new throttle position sensor , didnt see a way for it to be adjusted

Response:

It mabe new but was it setup properly. there is an adjustment on them.
It’s called Preload and dont hold me to it but I think it’s 1/16 of an inch. It’ could be 1/32.

I have a 1994 GMC Sierra, 2500 long box truck. 8 lug wheels. A friend of mine has some wheels to give me, that came off a Ford truck. The bolt holes measure the same, but the hub hole is bigger than my GMC hub hole. Will this matter, or will the wheel line up alright with the lug holes, instead of running on the hub?

Response:

1) They WILL work. I’ve cut the center out of GM wheels to use on Dodge and Ford.
2) Should probably work.  Make sure the hub is far enough out board to clear the brake calipers on the front.

Have a 98 Saturn DOHC 5 speed. Radiator fan will not come when hot but comes on when AC is used. I replaced the temperature sensor and connector but still no help. The “check engine” warning does not come on. I replaced the temperature sensor and connector. I also verified that there was 5.0 Volts measured at the sensor connector. I allowed the engine to idle until the temperature gauge was somewhat past mid range and coolant (now water) started bubbling out the tank. I turned the AC on and in less that 2 minutes, it had cooled down to near normal. What next?

Response:

Try using a paperclip to short the two terminals of the coolant temp sensor together. If the fan then comes on the problem is with the sensor or the coolant is not contacting the tip of the sensor.

I have a 1989 f250 5.8 the hose that hooks to the check valve blew out and where the deverter is connected it melted and the connection came off and hot air from it melted the top of the oil cap am I right in thinking the check valve is clogged and where can I find a diagram of the California emissions system for 1989 f250 5.8

Response:

I’m guessing you are referring to the PCV valve that plugs into a grommet on the valve cover.  This is a 2 buck item, but if you shake it and hear a rattle, it’s working.  Just replace the melted stuff, and connect it back together.  As for the CA stuff, Google works for me.  Or the dealer should have a copy of it.
 check valve allows air or liquid to pass in one direction only.  Remove it, blow in both ends.  If you can blow thru it from both ends it’s bad, if you can’t blow thru it from either end it’s bad.  If you can blow thru it in only one direction, it’s good.  As far as the second valve, don’t know what it is. 

Personally, I prefer to get to my destination; instead of siting on the side of the road waiting for the tow truck. Preparing your car for the trip is simple. This article is intended to briefly educate on how simple checks will keep you moving forward. Read on.
Automobiles are my specialty. I repair and service an average of one to five a day, with a comeback rate of 2%. Only 2 out of 100 vehicles return to me because of my mistake or a part failure. I take pride in educating auto owners about the importance of a reliable automobile. In order to prepare yourself for a successful commute on a long trip use a basic check list.

- Check the oil, you should check the oil on your car or truck once a week, but absolutely check it before a long drive.

- Check the tires, automotive tires will loose air over time. This can result in a major problem on the road, like a blow-out. Tires will malfunction if not inflated properly.

- Check the coolant, overheating can be damaging to the vehicles engine resulting in roadside assistance.

- Inspect the belts & hoses, a belt braking can cause a number of things; including battery charging and power steering malfunction.
In summary, I have briefly explained some basic checks on your car that should be performed, before a long trip. Make sure to consult a qualified auto service mechanic for further assistance. The auto mechanic should be able to assist you with other procedures that are necessary to make your automobile road worthy. Keep your ride off of the hook and have a save trip.

 I have a 2006 checy cobalt. the problem is my engine keeps comming on then it will go off. It may be off for 2 days then comes back on even while im driving. Then it may stay on again for couple of days then go off. What could be the problem.

Response:

Get someone to check the codes. Autozone or someplace like that will do it for free. I am just guessing but if you have a lot of miles on this car it could be your cat/converter is starting to be plugged or a sensor going bad. If it’s still under warrenty, the dealership will be the best place to start. Out of warrenty, check or have the engine codes checkrd and then let us know what has been discovered.
 Alot of times it could something as simple as a loose gas cap. Theres a sensor that monitors the vacuum pressure and if that cap is loose then it cant keep a vacuum.  I would try that…..This is True. Even a Fuel Cap being loose or having a inoperable pressure valve in it can cause this. However, if the vechicle is covered under a warrenty a maintence record is kept and these facts become availible to persons of interest like Car Fax when it is resold and the Consumer Protection Agency for ReCalls and updates.