I have an 85' rx7 GS with the 12a and a 5 spd tran. I posted earlier that it wouldn't start, since then I have replaced the starter, (+) and (-) battery cables and clamps, distributor cap, plugs, wires and battery and still nothing. I have been told that its the ignition switch and I tried to get one off ebay but somebody out bid me but still not sure what it is, PLEASE HELP!!!!!!
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Re: Car still won't turn over
OK can you turn it over by hand at the fan or bottom pully if yes thats ok....Have you got a spark when starting..Take off plug lead put old plug in H TCable
rest plug on engine spin engine over Did you get a spark if yed then its either Timing or petrol to carby or carby ...but if no spark then its either coil or condencer.. And if you want to check the ign switch
use a test light on the coil and put it to sw on coil and turn on to start if light up its ok
LET ME KNOW how you get on Ron
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WARNING: CHECK TO ENSURE THAT THE TRANSMISSION IS IN THE PARK/NEUTRAL POSITION WITH THE PARKING BRAKE APPLIED.
The starter relay is located in the Power Distribution Center (PDC) in the engine compartment. Refer to the PDC label for relay identification and location.
Remove the starter relay from the PDC as described to perform the following tests:
A relay in the de-energized position should have continuity between terminals 87A and 30, and no continuity between terminals 87 and 30. If OK, go to Step 2. If not OK, replace the faulty relay.
Resistance between terminals 85 and 86 (electromagnet) should be 75 ±5 ohms . If OK, go to Step 3. If not OK, replace the faulty relay.
Connect a battery B+ lead to terminals 86 and a ground lead to terminal 85 to energize the relay. The relay should click. Also test for continuity between terminals 30 and 87, and no continuity between terminals 87A and 30. If OK, refer to Relay Circuit Test procedure. If not OK, replace the faulty relay.
RELAY CIRCUIT TEST
The relay common feed terminal cavity (30) is connected to battery voltage and should be hot at all times. If OK, go to Step 2. If not OK, repair the open circuit to the PDC fuse as required.
The relay normally closed terminal (87A) is connected to terminal 30 in the de-energized position, but is not used for this application. Go to Step 3.
The relay normally open terminal (87) is connected to the common feed terminal (30) in the energized position. This terminal supplies battery voltage to the starter solenoid field coils. There should be continuity between the cavity for relay terminal 87 and the starter solenoid terminal at all times. If OK, go to Step 4. If not OK, repair the open circuit to the starter solenoid as required.
The coil battery terminal (86) is connected to the electromagnet in the relay. It is energized when the ignition switch is held in the Start position and the clutch pedal is depressed (manual trans). Check for battery voltage at the cavity for relay terminal 86 with the ignition switch in the Start position and the clutch pedal is depressed (manual trans), and no voltage when the ignition switch is released to the ON position. If OK, go to Step 5. If not OK, check for an open or short circuit to the ignition switch and repair, if required. If the circuit to the ignition switch is OK, see the Ignition Switch Test procedure.
The coil ground terminal (85) is connected to the electromagnet in the relay. It is grounded through the transmission range sensor only when the gearshift selector lever is in the Park or Neutral positions. Check for continuity to ground at the cavity for relay terminal 85. If not OK with an automatic transmission, check for an open or short circuit to the transmission range sensor and repair. It is grounded by the PCM if the conditions are right to start the car. For automatic trans. cars the PCM must see Park Neutral switch and near zero engine rpm. For manual trans. cars the PCM only needs to see near zero engine rpm. To diagnose the Park Neutral switch of the trans range sensor refer to the transaxle section for more information. Check for continuity to ground while the ignition switch is in the start position. If not OK and the vehicle has an automatic trans. verify Park Neutral switch operation. If that checks OK check for continuity between PCM and the terminal 85. Repair open circuit as required. If OK, the PCM may be defective
Nov 23, 2009 - 11 posts - 8 authors
On my 2007.5 Duramax, the factory remote has been working fine ... I tried this morning again with the remote starter while sitting in the truck and same thing, turned off ....2008 Silverado 2500 HD CCLB Duramax 6 Spd Allison 4X4 Z71 ... shut off engine", basically its doing it foryou as your not in the truck to ...
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i have two things that come to mind first of which is your neutral safety switch ...its located on the clutch pedal ..its to prevent the car from being started in gear it may not be working correctly and wont let power to the started when you turn the key...most likely the problem...the other thing if thats not it you may need to check the ignition switch...
Check the battery,have a load test done on the battery,and check the connections at the battery and the battery post,make sure they are shiny clean,then of course check the alternator,to make sure it is charging enough,13.65 volts to 14.25 volts,any less replace the alternator,If all this checks out good,replace the starter.
Before I replace the starter I would touch/feel, making sure its tightly mounted and the electrical wiring is also tight. Then disconnect the battery (-) cable and remove the starter, not that hard. Take the starter to Autozone and get it tested for FREE. Then if you need a starter you can buy one there and put it back on in the reverse order as removed.